Impact frame adjusting device of impact crusher

Abstract

The utility model relates to an impact frame adjusting device of an impact crusher, which comprises a working box body, and two adjusting frames are arranged below the working box body at intervals; the adjusting frame comprises a fixing rod connected with the bottom face of the working box body and a hinge groove formed in the tail end of the fixing rod, an arc-shaped bent plate used in cooperation with the hinge groove is arranged in the opening direction of the hinge groove, and an adjusting mechanism is arranged on the working box body. The adjusting mechanism comprises a horizontal adjusting mechanism arranged in the box body and a vertical buffering structure connected with the horizontal adjusting mechanism and located above the working box body. The impact rack adjusting device is ingenious in design and improvement, through improvement of a fixing rod structure of the impact rack adjusting device of the impact crusher, a hinge groove and an arc-shaped bent plate structure are designed, the situation that the fixing rod is sleeved from the left side and the right side of a connecting shaft of the impact rack of the crusher does not need to be considered during installation, the arc-shaped bent plate can be directly opened, and rapid installation can be achieved; meanwhile, the stability can be improved by designing a fixing device.

Description

Technical Field

[0001] The utility model belongs to the technical field of crusher adjustment devices, and in particular relates to an impact frame adjustment device of an impact crusher. Background Art

[0002] As a crusher that uses the impact principle to crush materials, the impact crusher has the characteristics of simple structure, high reliability, and wide application range. It is widely used in mining, chemical, construction, railway and other industries. However, with the birth and rapid development of various new crushing equipment, impact crusher products are facing greater competitive pressure. In order to adapt to market demand and development, products with simple structure, convenient processing and short processing cycle are becoming more and more popular.

[0003] The impact crusher is equipped with an impact frame inside, and the material collides with the impact frame to crush the material. The impact frame adjustment device is installed outside the impact frame. For example, a Chinese patent (Announcement No.: CN213791945U) discloses an impact frame adjustment device for an impact crusher, which is fixed to the crusher shell by an adjustment frame fixing rod (see Figure 1 ), in the actual installation process, the adjusting fixing rod (with hole) is connected to the impact frame, and there is a connecting shaft on the impact frame, and the connecting shaft is rotatably connected with the hole sleeve, but this structure is not convenient for installation with the connecting shaft. This defect problem also involves, for example, a Chinese patent (publication number: CN213791945U), designed by the applicant Guangxi Lingshan Guirun Heavy Industry Co., Ltd., whose adjusting fixing rod is similar to the above-mentioned design (see Figure 1 The same design is also reflected in the Chinese patent (publication number: CN110586287B), the applicant Henan Liming Heavy Industry Technology Co., Ltd., which is designed with a counter-attack frame pull rod. The specific structure is shown in Figure 3 The defect of this design is that it needs to be slid in from the outside of the connecting shaft in the left and right directions, which belongs to the installation method from the left and right directions. However, in actual situations, due to the relatively small operating space and the even smaller remaining space on the left and right, the installation is inconvenient and the efficiency is low. In view of this, the applicant has specially designed this invention. Utility Model Content

[0004] In order to solve the above-mentioned problems in the prior art, the utility model provides an impact frame adjustment device for an impact crusher which can improve the above-mentioned deficiencies.

[0005] The utility model relates to an impact frame adjustment device of an impact crusher, comprising a working box body, two adjustment frames are arranged at intervals below the working box body; the adjustment frame comprises a fixing rod connected to the bottom surface of the working box body and a hinge groove arranged at the end of the fixing rod, an arc-shaped curved plate used in conjunction with the hinge groove is arranged in the opening direction of the hinge groove, and the arc-shaped curved plate is used in conjunction with the hinge groove; an adjustment mechanism is arranged on the working box body; the adjustment mechanism comprises a horizontal adjustment mechanism arranged in the box body and a vertical buffer structure connected to the horizontal adjustment mechanism and located above the working box body.

[0006] Furthermore, the adjustment frame also includes a fixing device arranged at the rear side of the fixing rod, the fixing device includes a first fixed rod and a second fixed rod obliquely connected to the first fixed rod, and the second fixed rod is connected to the hinge groove.

[0007] Furthermore, the vertical buffer structure includes a top plate, a bottom plate, a shock-absorbing spring and an adjusting rod; the top plate and the bottom plate are spaced apart, and a hydraulic top cylinder is arranged in the middle of the bottom plate; the shock-absorbing spring is symmetrically arranged on both sides of the hydraulic top rod and is located between the top plate and the bottom plate; a limiting ring is arranged at the contact position between the top end of the shock-absorbing spring and the bottom surface of the top plate; a limiting ring is arranged at the contact position between the shock-absorbing spring and the top surface of the bottom plate; an adjusting rod is inserted in the shock-absorbing spring; the top of the adjusting rod passes through the top and is fixed by a locking nut; an adjusting seat is arranged at the bottom end of the adjusting rod.

[0008] Furthermore, the adjustment seat is a spherical adjustment seat.

[0009] Furthermore, the horizontal adjustment mechanism includes a screw rod, both ends of which are rotatably connected to mounting plates, and the mounting plates are fixed to the inner wall of the working box body; the outer surface of the screw rod is threadedly connected to two threaded blocks; a limit rod is arranged on the inner wall of the working box body, and the two threaded blocks are slidably connected to the limit rod; the top surfaces of the two threaded blocks are respectively hinged with hinge rods that penetrate the working box body; the hinge rods are hinged to the bottom surface of the base plate.

[0010] Furthermore, a driving device is arranged on the working box, and the driving device includes a driving motor and a reducer arranged outside the working box. A first conical tooth is arranged on the output shaft of the driving device, and a second vertical tooth vertically meshing with the first conical tooth is arranged on the screw.

[0011] Furthermore, the pitches between two adjacent coils in the shock absorbing spring are not completely the same; from the middle to the end of the shock absorbing spring, in two adjacent coils of the spring, the outer diameter of the next coil is smaller than the outer diameter of the previous coil.

[0012] Furthermore, the pitch between two adjacent turns of the shock absorbing spring gradually increases from the middle to both ends.

[0013] The design of the utility model is ingeniously improved. By improving the fixed rod structure of the impact frame adjustment device of the impact crusher, a hinge groove and an arc-shaped curved plate structure are designed. When installing, there is no need to consider inserting from the left and right sides of the connecting shaft of the crusher impact frame. The arc-shaped curved plate can be directly opened and can be installed quickly. At the same time, the fixing device is designed to improve stability. A horizontal adjustment mechanism and a vertical buffer mechanism are designed to enable the two adjustment rods to move synchronously, thereby ensuring the consistency and synchronization of the adjustment of the adjustment rods. Long-distance adjustment can be performed and the automation of the device can be realized, making its operation faster and more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 .

[0015] Figure 2 Schematic diagram of the shock-absorbing spring structure.

[0016] Figure 3 It is a schematic diagram of the connection between the adjusting pull rod and the supporting frame in the structure of the utility model.

[0017] Figure 4 for Figure 3 Schematic diagram of the combination of the middle hinge groove and the arc-shaped curved plate.

[0018] Illustration: 1 working box, 2 fixing rod, 3 first fixing rod, 4 second fixing rod, 5 hinge groove, 6 arc curved plate, 61 connecting shaft, 601 connecting hole, 602 snap-fit ​​hole, 603 pin assembly, 7 spherical adjustment seat, 8 limit rod, 9 threaded block, 10 screw, 11 mounting plate, 12 hinge rod, 13 bottom plate, 14 shock-absorbing spring, 141 limit ring, 15 adjusting rod, 16 top plate, 17 locking nut, 18 hydraulic top cylinder, 19 driving motor, 20 reducer, 21 door-type mounting frame, 22 first bevel gear, 23 second bevel gear. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0020] like Figure 1-3As shown, the utility model relates to an impact frame adjustment device of an impact crusher, comprising a working box 1, two adjustment frames are arranged at intervals below the working box; the adjustment frame comprises a fixing rod 2 connected to the bottom surface of the working box and a hinge groove 5 arranged at the end of the fixing rod, an arc-shaped curved plate 6 used in conjunction with the hinge groove is arranged in the opening direction of the hinge groove, and the arc-shaped curved plate is used in conjunction with the hinge groove; a connection hole 601 is designed at the free end of the arc-shaped curved plate, and a buckling hole 602 that can overlap with the connection hole is arranged on the hinge groove; as shown in FIG. Figure 4 As shown, the arc-shaped curved plate and the connecting groove are used to be fixed on the connecting shaft 61 inside the crusher; when the arc-shaped curved plate is engaged with the hinge groove, it is locked by the pin assembly 603; this form can quickly install the fixing rod on the impact frame of the crusher. This design avoids the defects listed in the background technology, that is, the installation method from the left and right sides is not considered; an adjustment mechanism is arranged on the working box body; the adjustment mechanism includes a horizontal adjustment mechanism arranged in the box body and a vertical buffer structure connected to the horizontal adjustment mechanism and located above the working box body.

[0021] As a technical improvement, in order to increase the stability of the structure, the adjustment frame further includes a fixing device arranged at the rear side of the fixing rod, the fixing device includes a first fixing rod 3 and a second fixing rod obliquely connected to the first fixing rod 4, and the second fixing rod is connected to the hinge groove. The fixing device designed in this scheme does not exist in the existing structure.

[0022] As a technical improvement, the vertical buffer structure includes a top plate 16, a bottom plate 13, a shock-absorbing spring 14 and an adjusting rod 15; the top plate and the bottom plate are spaced apart, and a hydraulic top cylinder 18 is arranged in the middle of the bottom plate; the shock-absorbing spring is symmetrically arranged on both sides of the hydraulic top rod and is located between the top plate and the bottom plate; a limiting ring 141 is arranged at the contact position between the top end of the shock-absorbing spring and the bottom surface of the top plate; a limiting ring 141 is arranged at the contact position between the shock-absorbing spring and the top surface of the bottom plate; the limiting ring can prevent the shock-absorbing spring from falling off and play a role of limiting and fixing; adjusting rods 15 are inserted in the shock-absorbing springs; the tops of the adjusting rods pass through the top and are fixed by locking nuts 17; an adjusting seat 7 is arranged at the bottom end of the adjusting rod, and the adjusting seat is used to be fixed on the outer frame of the crusher, which can generally be fixed by welding, or mounting screw holes are set on the adjusting seat and fixed by bolts.

[0023] In order to facilitate fine adjustment of the adjustment seat, the adjustment seat is a spherical adjustment seat, which can rotate slightly. The spherical adjustment seat includes a base and a rotating ball arranged inside the base, and the rotating ball is connected to the bottom end of the adjustment rod.

[0024] As a technical improvement, the horizontal adjustment mechanism includes a screw 10, both ends of which are rotatably connected to mounting plates 11, and the mounting plates are fixed on the inner wall of the working box body; the outer surface of the screw is threadedly connected to two threaded blocks 6; a limit rod 8 is provided on the inner wall of the working box body, and the two threaded blocks are slidably connected to the limit rod, and a limit hole that matches the limit rod clearance is provided at the connection between the limit rods; the top surfaces of the two threaded blocks are respectively hinged with hinge rods 12 that pass through the working box body; the hinge rods are hinged to the bottom surface of the base plate; the thread on the outer surface of the screw is divided into two sections, and the two sections of the thread are in opposite directions.

[0025] As a technical improvement, a driving device is arranged on the working box, and the driving device includes a driving motor 19 and a reducer 20 arranged on the outside of the working box. A first conical tooth 22 is arranged on the output shaft of the driving device, and a second vertical tooth 23 vertically meshing with the first conical tooth is arranged on the screw. A gate-type fixing frame 21 is also arranged on the inner wall of the working box through which the output shaft passes. The gate-type fixing frame is used to fix the first conical tooth, and a hole is provided in the middle thereof and a bearing is arranged.

[0026] like Figure 2 As shown, as a technical improvement, the pitches between two adjacent circles in the shock-absorbing spring are not completely the same; from the middle of the shock-absorbing spring to the end, in the two adjacent circles of the spring, the outer diameter of the next circle of the spring is smaller than the outer diameter of the previous circle of the spring; from the middle of the shock-absorbing spring to the two ends, the pitches between two adjacent circles gradually increase. The advantage of this design is that the end size of the shock-absorbing spring is small, which is conducive to fixation, and the middle is large. Under the action of impact, the end and the middle position receive different loads, and at the same time provide spring stiffness of different strengths. The end position is subject to a smaller load. Compared with springs of the same length and uniform outer diameter, the overall vibration amplitude of the vibration spring is reduced, and its stability is better.

[0027] Through the operation of the driving device, the first conical tooth drives the rotation of the second conical tooth, and at the same time drives the rotation of the screw rod. The two screw hole blocks on the screw rod can only move left and right under the action of the limit rod, and then drive the rotation of the articulated rod, and the articulated rod drives the bottom plate to move up and down. At this time, the hydraulic top cylinder extends the hydraulic rod and moves downward through the working box, and supports the crusher casing, squeezes the bottom plate and compresses the shock-absorbing spring at the same time. When the impact crusher is working, the impact frame is subjected to a large impact force, and the impact force can be buffered by the spring 308.

Claims

1. An impact frame adjustment device for an impact crusher, comprising a working box, characterized in that: Two adjustment frames are arranged at intervals below the working box body; the adjustment frame includes a fixing rod connected to the bottom surface of the working box body and a hinge groove arranged at the end of the fixing rod, and an arc-shaped curved plate used in conjunction with the hinge groove is arranged in the opening direction of the hinge groove, and the arc-shaped curved plate is used in conjunction with the hinge groove; an adjustment mechanism is arranged on the working box body; the adjustment mechanism includes a horizontal adjustment mechanism arranged in the box body and a vertical buffer structure connected to the horizontal adjustment mechanism and located above the working box body.

2. The impact frame adjustment device of an impact crusher according to claim 1, characterized in that: The adjustment frame also includes a fixing device arranged at the rear side of the fixing rod, the fixing device includes a first fixing rod and a second fixing rod obliquely connected to the first fixing rod, and the second fixing rod is connected to the hinge groove.

3. The impact frame adjustment device of an impact crusher according to claim 1, characterized in that: The vertical buffer structure includes a top plate, a bottom plate, a shock-absorbing spring and an adjusting rod; the top plate and the bottom plate are spaced apart, and a hydraulic top cylinder is arranged in the middle of the bottom plate; the shock-absorbing spring is symmetrically arranged on both sides of the hydraulic top rod and is located between the top plate and the bottom plate; a limiting ring is arranged at the contact position between the top end of the shock-absorbing spring and the bottom surface of the top plate; a limiting ring is arranged at the contact position between the shock-absorbing spring and the top surface of the bottom plate; an adjusting rod is inserted in the shock-absorbing spring; the top of the adjusting rod passes through the top and is fixed by a locking nut; an adjusting seat is arranged at the bottom end of the adjusting rod.

4. The impact frame adjustment device of an impact crusher according to claim 3, characterized in that: The adjustment seat is a spherical adjustment seat.

5. The impact frame adjustment device of an impact crusher according to claim 1, characterized in that: The horizontal adjustment mechanism includes a screw rod, both ends of which are rotatably connected to mounting plates, and the mounting plates are fixed to the inner wall of the working box body; the outer surface of the screw rod is threadedly connected to two threaded blocks; a limit rod is arranged on the inner wall of the working box body, and the two threaded blocks are slidably connected to the limit rod; the top surfaces of the two threaded blocks are respectively hinged with hinge rods that penetrate the working box body; the hinge rods are hinged to the bottom surface of the base plate.

6. The impact frame adjustment device of an impact crusher according to claim 5, characterized in that: The working box is provided with a driving device, which includes a driving motor and a reducer arranged outside the working box. The output shaft of the driving device is provided with a first conical tooth, and the screw is provided with a second vertical tooth that meshes vertically with the first conical tooth.

7. The impact frame adjustment device of an impact crusher according to claim 3, characterized in that: The pitches of two adjacent circles in the shock absorbing spring are not completely the same; from the middle to the end of the shock absorbing spring, in the two adjacent circles of the spring, the outer diameter of the next circle of the spring is smaller than the outer diameter of the previous circle of the spring.

8. The impact frame adjustment device of an impact crusher according to claim 7, characterized in that: The pitch between two adjacent turns of the shock absorbing spring gradually increases from the middle to the two ends.

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