A crushing roller shaft head assembly structure and hot pressing assembly device thereof

Abstract

The present invention is applicable to the technical field of crushing roller assembly, and provides a hot pressing assembly device, including a frame, wherein two ends of the frame are respectively provided with a pressing assembly, a fixing assembly and a limiting assembly, two auxiliary clamping assemblies are provided between the pressing assembly and the fixing assembly, a clamp 1 is provided on the pressing assembly, a clamp 2 is provided on the fixing assembly, the clamp 1, the clamp 2 and the auxiliary clamping assembly are on the same axis, an alignment assembly is commonly provided on the pressing assembly and the fixing assembly, and the alignment assembly facilitates the adjustment of the shaft head to be aligned with the pin hole on the intermediate sleeve, and the device solves the problems of coaxiality of the shaft head and difficulty in aligning the corresponding positions of the pin holes when the shaft head is pressed in, an auxiliary clamping assembly and an alignment assembly are added, the coaxiality of the workpiece and the alignment of the pin holes are realized, and at the same time, a crushing roller shaft head assembly structure assembled using the above-mentioned hot pressing assembly device is provided, which solves the problem of high cost of forging alloy, improves assembly efficiency and reduces production cost.

Description

Technical Field

[0001] The invention relates to the technical field of crushing roller assembly, and more specifically, to a crushing roller shaft head assembly structure and a hot pressing assembly device thereof. Background Art

[0002] The shaft head refers to the two ends of the shaft, which are usually used to connect the roller body and install bearings. The shaft head is connected to the power mechanism, and transmits power to the roller body through the friction between the shaft head and the roller body, playing the role of supporting the operation of the equipment on the shaft. During use, an intermediate sleeve is usually added between the shaft head and the roller body to buffer the impact of the roller body on the shaft head through the intermediate sleeve, thereby reducing the wear of the shaft head. The assembly of the shaft head and the intermediate sleeve is usually hot-pressed to ensure an interference fit between the two.

[0003] At present, the assembly structure of the crushing roller shaft head on the market is made of forged alloy round steel, which has a dense and uniform structure, high wear resistance and tensile strength, and is not prone to defects. However, the process is complicated and the processing cycle is long, which makes the overall cost high.

[0004] The conventional hot pressing assembly device is composed of a hydraulic system, a conveying trolley, a measuring system, a clamping block and other structures. The operator takes out the intermediate sleeve that has completed the heating process and transports it to the conveying trolley for clamping through a lifting device. After the conveying trolley drives the intermediate sleeve to move to a suitable position, the clamping block can fix its axial position. The hydraulic system with the shaft head clamped presses the shaft head into the intermediate sleeve to complete the assembly. However, the operator usually needs to manually adjust it during the pressing process to ensure the alignment of the shaft hole and the radial pin hole. This is difficult and cumbersome to operate, and it is difficult to ensure assembly accuracy and low assembly efficiency, which increases production costs. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a crushing roller shaft head assembly structure and a hot pressing assembly device thereof which can reduce production costs while ensuring product quality.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A hot press assembly device comprises a frame, wherein two ends of the frame are respectively provided with a press-in assembly and a fixing assembly, wherein the fixing assembly is used to grab an intermediate sleeve and fix it at a certain position, and the press-in assembly pushes the shaft head to assemble it into the intermediate sleeve;

[0008] A limit assembly is installed on the frame, and the limit assembly can limit the fixing assembly to ensure that the position of the intermediate sleeve is fixed, which is convenient for the assembly of the shaft head. Two auxiliary clamping assemblies are arranged between the press-in assembly and the fixing assembly. A clamp 1 is arranged on the press-in assembly, and a clamp 2 is arranged on the fixing assembly. Both ends of the intermediate sleeve are clamped and fixed by the clamp 2 and an auxiliary clamping assembly, and both ends of the shaft head are clamped and fixed by the clamp 1 and an auxiliary clamping assembly. The clamp 1, the clamp 2 and the auxiliary clamping assembly are arranged on the same axis, which ensures that the axis center of the intermediate sleeve and the axis center of the shaft head are always maintained on the same straight line during the assembly process, ensuring coaxiality, thereby improving assembly accuracy;

[0009] The press-in assembly and the fixing assembly are jointly equipped with an alignment assembly, which facilitates the adjustment of the shaft head to align with the pin hole on the intermediate sleeve, avoids manual alignment errors, ensures assembly accuracy, improves production efficiency, and thus reduces production costs.

[0010] The present invention is further configured as follows: the press-in assembly includes a mounting frame, a motor 1 is mounted in the mounting frame, the clamp 1 is rotatably mounted on the mounting frame, the clamp 1 is fixed on the output shaft of the motor 1, the motor 1 can drive the clamp 1 to rotate, thereby driving the shaft head clamped by it to rotate, so as to facilitate the alignment of the shaft head and the pin hole on the intermediate sleeve;

[0011] The cam is configured to have two guide rails, each of which is connected to a base, and the guide rails are connected to the base in a sliding manner, wherein the guide rails are provided with a limit strip along the axial direction, and two sliders are connected to the guide rails and the limit strip in a sliding manner, and the slider is connected to a slide bar, one end of the slide bar points to the axis of the clamp, and a plug is movably installed on the slide bar, and the plug can be engaged with the pin hole, and one of the plugs is inserted into the pin hole of the intermediate sleeve, and the corresponding slide bar limits the track rod through the limit strip, so that the position of the track rod is fixed. At this time, the other slide bar is moved to the shaft head, and the shaft head is rotated so that the plug can be inserted into the pin hole on the shaft head accordingly, so that the position of the shaft head and the pin hole of the intermediate sleeve can be ensured to be aligned, and the two plugs can be removed to start the press-in assembly for assembly, which is convenient for aligning the pin holes and improving the assembly accuracy and efficiency.

[0012] The present invention is further configured as follows: the clamp 1 includes a base plate, a plurality of hydraulic rods 1 are evenly mounted on the base plate, the output shafts of the plurality of hydraulic rods 1 all point to the axis of the clamp 1, an extrusion block is connected to the output shaft of the hydraulic rod 1, and the clamp 2 has the same structure as the clamp 1.

[0013] The present invention is further configured as follows: the auxiliary clamping assembly includes two hydraulic rods three, and the hydraulic rods three are respectively fixed on the pressing assembly or the fixing assembly, and the output shaft of the hydraulic rod three points to the side away from the fixed position, and the output shafts of the two hydraulic rods three on the same side are commonly connected with a mounting plate, and a clamp three is mounted on the mounting plate, and the center of the clamp three is coaxial with the clamp, and the clamp three includes two hydraulic rods four, and the two hydraulic rods four are symmetrically arranged on the same horizontal plane, and the output shafts of the two hydraulic rods four are relatively arranged, and the output shafts of the two hydraulic rods four are connected with a V-block, and the two hydraulic rods three corresponding to the same auxiliary clamping assembly can push the mounting plate to move, thereby controlling the auxiliary clamping assembly to move to different distances of the corresponding pressing assembly or fixing assembly to meet the clamping requirements of workpieces of different sizes, thereby ensuring the stability of clamping.

[0014] The present invention is further configured as follows: the frame includes a base, two ends of the base are respectively connected to a right fixed plate and a left fixed plate, a hydraulic cylinder is installed on the left fixed plate, and the hydraulic cylinder can push the press-in component to move toward the fixed component.

[0015] The present invention is further configured as follows: the fixing assembly includes an abutment plate, the abutment plate is slidably connected to the base, the second clamp is mounted on the abutment plate, the frame is mounted with a second motor, the output shaft of the second motor is connected with a screw, the screw is rotatably connected to the frame, and the abutment plate is threadedly connected to the screw, so that the relative position of the fixing assembly and the press-in assembly can be adjusted according to different sizes of the workpiece, which is convenient for installation;

[0016] The limit assembly includes a plurality of limit rods 1 and a limit rod 2, the limit rod 1 is fixed on the base, the abutment plate is slidably connected to the limit rod 1, the limit rod 2 is fixed on the abutment plate, the limit rod 2 is slidably connected to the right fixed plate, a plurality of limit grooves are evenly arranged on the limit rod 1 and the limit rod 2, a hydraulic rod 2 is correspondingly installed on the abutment plate and the right fixed plate, a clamping block is fixed on the output shaft of the hydraulic rod 2, the clamping block can be correspondingly engaged with the limit groove, after the fixed assembly is adjusted into place, the hydraulic rod 2 pushes the clamping block into the corresponding limit groove, thereby clamping the main fixed assembly, ensuring that its position is fixed during the assembly process, and providing sufficient supporting force for the extrusion of the pressed-in assembly.

[0017] The present invention is further configured as follows: a scale bar is connected between the right fixed plate and the left fixed plate to facilitate confirmation of the size of the workpiece pressed in; a receiving groove is provided on the side of the abutment plate facing the press-in component; a pressure detector is installed at the bottom of the receiving groove; the squeezing force of the workpiece on the bottom of the receiving groove can reflect the progress of the assembly, and the reading of the scale bar is combined with the timely confirmation of the completion of the assembly work.

[0018] A crushing roller shaft head assembly structure assembled using the above-mentioned hot pressing assembly device comprises a shaft head, one end of the shaft head is pre-set to be connected to the roller body and is sleeved with an intermediate sleeve, the shaft head and the intermediate sleeve are in interference fit, a plurality of pin holes are symmetrically opened between the intermediate sleeve and the shaft head, and a plurality of the pin holes are connected with positioning pins, and the positioning pins are arranged along the radial direction of the shaft head to ensure that the shaft head is firmly connected and the shaft string phenomenon does not occur;

[0019] The intermediate sleeve is made of grey cast iron, which has strong tensile strength and wear and heat resistance, can buffer the tension and stress between the roller body and the shaft head, avoid cracking of the roller body, and is easy to manufacture and low in cost. At the same time, its surface roughness is high, which can provide greater friction and ensure the stability of transmission.

[0020] The advantages of the present invention are:

[0021] 1. The intermediate sleeve is made of gray cast iron because of its high surface roughness, strong tensile strength, wear resistance and heat resistance. It improves the transmission efficiency between the shaft head and the roller body, effectively decomposes and buffers the tension and stress between the roller body and the shaft head, and prevents the roller body from slipping and cracking. At the same time, compared with the commonly used forging alloy, its production cost is lower, achieving energy saving and efficiency improvement.

[0022] 2. By adding two movable auxiliary clamping components, in conjunction with the clamp 1 on the press-in component and the clamp 2 on the fixed component, the intermediate sleeve and the shaft head can be clamped from both ends respectively, and the axis of the above clamps is always maintained on the same straight line, ensuring the coaxiality of the installation process, preventing the workpiece from being crushed, facilitating installation, and improving assembly production efficiency;

[0023] 3. An alignment component is installed on the press-in component and the fixing component. The track rod of the alignment component can move around the preset workpiece, and the slider can move on the track rod. When a plug is inserted into a pin hole of the intermediate sleeve, the corresponding slider fixes the position of the track rod through the limit strips on both sides of the track rod. At this time, move another slider to the shaft head and rotate the shaft head until the plug on the slider is just inserted into the pin hole on the shaft head, so that the shaft head can be aligned with the pin hole on the intermediate sleeve, thereby ensuring assembly accuracy, reducing operation difficulty, and improving assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the shaft head assembly structure of the present invention;

[0025] Figure 2 It is a schematic structural diagram of the hot pressing assembly device of the present invention;

[0026] Figure 3 for Figure 2 The top view shown;

[0027] Figure 4 For along Figure 3 The left half of the AA line section is shown;

[0028] Figure 5 For along Figure 3 The right half of the AA line section is shown;

[0029] Figure 6 For along Figure 3 The BB line cross section is shown;

[0030] Figure 7 For along Figure 3 The CC line cross-section is shown;

[0031] Figure 8 for Figure 2 An enlarged view of part D is shown;

[0032] Fig. 9 for Figure 2 An enlarged view of part E is shown;

[0033] Fig.10 for Figure 6 An enlarged view of section G is shown;

[0034] Fig.11 for Figure 2 An enlarged view of part F is shown;

[0035] In the figure: 1, shaft head; 2, middle sleeve; 3, positioning pin; 4, frame; 41, base; 42, right fixing plate; 43, left fixing plate; 44, scale bar; 5, press-in assembly; 51, mounting frame; 52, hydraulic cylinder; 53, clamp 1; 531, bottom plate; 532, hydraulic rod 1; 533, extrusion block; 54, motor 1; 6, fixing assembly; 61, motor 2; 62, screw; 63, abutment plate; 631, receiving groove; 632, Pressure detector; 64, clamp two; 7, alignment assembly; 71, slide groove; 72, track rod; 721, limit strip; 73, slider; 74, slide rod; 75, plug; 8, limit assembly; 81, limit rod one; 811, limit groove; 82, limit rod two; 83, hydraulic rod two; 84, block; 9, auxiliary clamping assembly; 91, hydraulic rod three; 92, mounting plate; 93, clamp three; 931, hydraulic rod four; 932, V-block. DETAILED DESCRIPTION

[0036] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application may be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0037] Reference Figure 2-Figure 11 , the present invention provides the following solutions:

[0038] A hot press assembly device comprises a frame 4, with a press-in assembly 5 and a fixing assembly 6 respectively installed at both ends of the frame 4. During the assembly process, the fixing assembly 6 can clamp the intermediate sleeve 2 and maintain its position fixed, and the press-in assembly 5 clamps the shaft head 1 and pushes the shaft head 1 into the intermediate sleeve 2 to complete the assembly;

[0039] The frame 4 is provided with a limit assembly 8, which can limit the fixing assembly 6, thereby providing sufficient support force for the intermediate sleeve 2 during the assembly process, and facilitating the pressing in of the shaft head 1;

[0040] Two auxiliary clamping components 9 are arranged between the press-in component 5 and the fixed component 6, the press-in component 5 is provided with a clamp 1 53, and the fixed component 6 is provided with a clamp 2 64. The two ends of the intermediate sleeve 2 are clamped and fixed by the fixed component 6 and an auxiliary clamping component 9 respectively, and the two ends of the shaft head 1 are clamped and fixed by the press-in component 5 and an auxiliary clamping component 9 respectively, thereby increasing the clamping points, thereby ensuring the fixation of the workpiece position during the assembly process, and facilitating the assembly;

[0041] The clamp 1 53, the clamp 2 64 and the auxiliary clamping assembly 9 all adopt a centripetal clamping method, and the clamp 1 53, the clamp 2 64 and the auxiliary clamping assembly 9 are arranged on the same axis, so that the shaft head 1 and the intermediate sleeve 2 can automatically ensure coaxiality after being clamped, which is convenient for assembly;

[0042] The press-in assembly 5 and the fixing assembly 6 are jointly provided with an alignment assembly 7, which facilitates the adjustment of the shaft head 1 and the pin hole on the intermediate sleeve 2 to be aligned, thereby reducing the difficulty of operating the pin hole and improving the assembly efficiency.

[0043] Further, the press-in assembly 5 includes a mounting frame 51, a motor 54 is installed in the mounting frame 51, a fixture 53 is rotatably mounted on the mounting frame 51, and the fixture 53 is fixed on the output shaft of the motor 54. The motor 54 is preferably a stepping motor. Controlling the motor 54 can change the angle of the shaft head 1 on the fixture 53, so as to adjust the alignment of the pin hole thereon with the intermediate sleeve 2.

[0044] The alignment component 7 includes a slide groove 71. Slide grooves 71 are provided on both ends of the frame 4, the mounting frame 51 and the fixing component 6. The slide grooves 71 are arc-shaped and are arranged above the preset workpiece position. A track rod 72 is slidably connected in all the slide grooves 71. A limit strip 721 is axially arranged on the track rod 72. Two sliders 73 are slidably connected on the track rod 72 and the limit strip 721. A slide rod 74 is slidably connected on the slider 73. One end of the slide rod 74 points to the axis of the clamp 53 and a plug 75 is movably installed. The plug 75 can be engaged with the pin hole. In actual use, a plug 75 that matches the size of the pin hole can be selected and installed on the slide rod 74 to prevent the plug 75 from shaking in the pin hole when the size does not match, thereby causing deviation.

[0045] Here’s how it works:

[0046] The shaft head 1 and the intermediate sleeve 2 are clamped on the device and their positions are adjusted so that there is a pin hole facing upward on both the shaft head 1 and the intermediate sleeve 2. The sliding rod 74 corresponding to the intermediate sleeve 2 is pulled so that its plug 75 is inserted into the upward pin hole of the intermediate sleeve 2. At this time, the position of the sliding rod 74 is fixed, and its corresponding slider 73 is fixed, and the position of the track rod 72 is limited by the limit bar 721. Then move another slider 73 to the pin hole on the shaft head 1, and control the motor 54 to drive the shaft head 1 to rotate until the corresponding plug 75 can be inserted into the pin hole on the shaft head 1. At this time, the pin hole on the shaft head 1 corresponds to the position of the pin hole on the intermediate sleeve 2. Take out the two plugs 75, and start the press-in assembly 5 to assemble the shaft head 1 and the intermediate sleeve 2.

[0047] In one embodiment, the clamp 53 includes a bottom plate 531, on which a plurality of hydraulic rods 532 are evenly mounted, the output shafts of the plurality of hydraulic rods 532 all point to the axis of the clamp 53, and the output shafts of the hydraulic rods 532 are connected to the extrusion blocks 533. When the clamp 53 is started to clamp the shaft head 1, all the hydraulic rods 532 act synchronously and push the extrusion blocks 533 toward the center, thereby clamping the shaft head 1, so that the axis of the shaft head 1 is coaxial with the center of the clamp 53, and the clamp 2 64 has the same structure as the clamp 53;

[0048] The auxiliary clamping assembly 9 includes two hydraulic rods 3 91, which are fixed on the press-in assembly 5 or the fixing assembly 6 respectively, and the output shaft of the hydraulic rod 3 91 points to the side away from the fixed position. The output shafts of the two hydraulic rods 3 91 on the same side are commonly connected with a mounting plate 92, and a clamp 3 93 is installed on the mounting plate 92. The center of the clamp 3 93 is coaxial with the clamp 1 53. The clamp 3 93 includes two hydraulic rods 4 931, which are symmetrically arranged on the same horizontal plane. The output shafts of the two hydraulic rods 4 931 are arranged relatively, and a V-shaped block 932 is connected to the output shafts of the two hydraulic rods 4 931. The two hydraulic rods 4 931 are arranged on both sides of the horizontal direction of the preset workpiece position. When the clamp 3 93 is opened, it will not interfere with the hoisted workpiece and will not affect the loading of the workpiece.

[0049] According to the different sizes of the workpiece, the hydraulic rod 3 91 can be adjusted to push the mounting plate 92 to move to a suitable position, and then the clamp 3 93 can be used to clamp it, thereby improving the stability of the workpiece clamping and ensuring its assembly accuracy;

[0050] A ball bearing may be installed on the clamping surface of a V-shaped block 932 of an auxiliary clamping assembly 9 connected to the press-in assembly 5, so as to facilitate the movement of the shaft head 1 on the clamp 3 93 during assembly;

[0051] The clamp 1 53, the clamp 2 64 and the clamp 3 93 all adopt a centripetal clamping method, which can automatically ensure that the axes of the workpieces are in line after the workpieces are clamped, which facilitates assembly and improves the assembly production quality and efficiency.

[0052] Furthermore, the frame 4 includes a base 41, and the two ends of the base 41 are respectively connected to a right fixing plate 42 and a left fixing plate 43. A hydraulic cylinder 52 is installed on the left fixing plate 43, and the hydraulic cylinder 52 can push the pressing component 5 to move toward the fixing component 6 to realize the pressing of the shaft head 1.

[0053] The fixing assembly 6 includes an abutment plate 63, which is slidably connected to the base 41, and a second clamp 64 is installed on the abutment plate 63. A second motor 61 is installed on the right fixing plate 42. A screw 62 is connected to the output shaft of the second motor 61, and the screw 62 is rotatably installed on the base 41. The abutment plate 63 is threadedly connected to the screw 62. The second motor 61 can drive the abutment plate 63 to move along the base 41, so that the distance between the fixing assembly 6 and the press-in assembly 5 can be adjusted according to the actual size of the workpiece, thereby reducing the displacement of the press-in assembly 5 during the assembly process and improving the assembly efficiency.

[0054] The limiting assembly 8 includes a plurality of limiting rods 81 and a plurality of limiting rods 82. The limiting rod 81 is fixed on the base 41. The abutment plate 63 is slidably connected to the limiting rod 81. The limiting rod 82 is fixed on the abutment plate 63. The limiting rod 82 is slidably connected to the right fixed plate 42. The limiting rod 81 and the limiting rod 82 provide limiting support for the abutment plate 63 from both ends to ensure the stability of the position of the abutment plate 63 during the assembly process. The limiting rod 81 and the limiting rod 82 are evenly provided with a plurality of limiting grooves 811. A hydraulic rod 83 is correspondingly installed on the abutment plate 63 and the right fixed plate 42, and a clamping block 84 is fixed on the output shaft of the hydraulic rod 83, and the clamping block 84 can be correspondingly engaged with the limiting groove 811. After the fixing component 6 moves to a suitable position, the hydraulic rod 83 is started, and the clamping block 84 is pressed into the corresponding limiting groove 811, thereby fixing the fixing component 6 on the base 41 to prevent it from moving. When the pressing component 5 squeezes the shaft head 1 toward it, it can provide sufficient supporting force to ensure the smooth assembly of the shaft head 1 and the intermediate sleeve 2.

[0055] A scale bar 44 is connected between the right fixing plate 42 and the left fixing plate 43, and the length of the part of the shaft head 1 pressed into the middle sleeve 2 can be read according to the scale bar 44; a receiving groove 631 is provided on the side of the abutment plate 63 facing the press-in component 5, and a pressure detector 632 is installed at the bottom of the receiving groove 631. The assembly status of the shaft head 1 and the middle sleeve 2 can be judged according to the reading of the pressure detector 632, and the reading of the scale bar 44 can be used to promptly confirm whether the assembly is completed or abnormality occurs, so that the operator can deal with it in time.

[0056] The working principle of the present invention is as follows:

[0057] Start the second motor 61, and adjust the relative distance between the abutment plate 63 and the bottom plate 531 according to the axial dimensions of the shaft head 1 and the intermediate sleeve 2 actually assembled, so that the distance is slightly larger than the sum of the axial dimensions of the shaft head 1 and the intermediate sleeve 2;

[0058] Start the second hydraulic rod 83, so that the clamping block 84 is correspondingly engaged with the first limiting rod 81 and the corresponding limiting groove 811 on the second limiting rod 83, and the position of the fixing component 6 on the base 41 is fixed;

[0059] Clamp the shaft head 1 on the clamp 1 53 by the lifting device, ensure that the left end face of the shaft head 1 is in contact with the bottom plate 531, and adjust the angle of the shaft head 1 so that one of the pin holes faces upward, start the hydraulic rod 3 91 of the auxiliary clamping assembly 9 connected to the press-in assembly 5, move the mounting plate 92 to the right end of the shaft head 1, start the clamp 3 93, and clamp the shaft head 1;

[0060] The intermediate sleeve 2 is clamped on the second clamp 64 by the lifting device, ensuring that the right end surface of the intermediate sleeve 2 is in contact with the bottom of the accommodating groove 631, and the angle of the intermediate sleeve 2 is adjusted so that one of the pin holes faces upward, and the hydraulic rod 3 91 of the auxiliary clamping assembly 9 connected to the fixing assembly 6 is started, and the mounting plate 92 is moved to the left end of the intermediate sleeve 2, and the clamp 3 93 is started to clamp the intermediate sleeve 2;

[0061] Use the alignment assembly 7 to adjust the shaft head 1 so that the pin hole on the shaft head 1 corresponds to the position of the pin hole on the intermediate sleeve 2;

[0062] Take out the two plugs 75, start the hydraulic cylinder 52, push the shaft head 1 into the middle sleeve 2, until the scale bar 44 and the readings of the pressure detector 632 both show that the shaft head 1 and the middle sleeve 2 are installed in place, that is, the assembly is completed.

[0063] In summary, the present application adds two movable auxiliary clamping components 9, cooperates with the clamp 1 53 on the press-in component 5 and the clamp 2 64 on the fixed component 6, and can clamp the intermediate sleeve 2 and the shaft head 1 from both ends respectively, and the axis of the above-mentioned clamps is always maintained on the same straight line, which ensures the coaxiality of the installation process, can prevent the workpiece from being crushed, facilitates the installation, and improves the assembly production efficiency;

[0064] An alignment component 7 is installed on the press-in component 5 and the fixing component 6. The track rod 72 of the alignment component 7 can move around a preset workpiece, and the slider 73 can move on the track rod 72. When a plug 75 is inserted into a pin hole of the intermediate sleeve 2, the corresponding slider 73 fixes the position of the track rod 72 through the limit strips 721 on both sides of the track rod 72. At this time, the other slider 73 is moved to the shaft head 1, and the shaft head 1 is rotated until the plug 75 on the slider 73 is just inserted into the pin hole on the shaft head 1, which can ensure that the shaft head 1 is aligned with the pin hole position on the intermediate sleeve 2, thereby ensuring assembly accuracy, reducing operation difficulty, and improving assembly efficiency.

[0065] See also Figure 1 , the present invention provides the following technical solutions:

[0066] A crushing roller shaft head assembly structure assembled by using the above-mentioned hot pressing device comprises a shaft head 1, one end of the shaft head 1 connected to the roller body is sleeved with an intermediate sleeve 2, the shaft head 1 and the intermediate sleeve 2 are interference fit, a plurality of pin holes are symmetrically opened between the intermediate sleeve 2 and the shaft head 1, and a plurality of pin holes are connected with positioning pins 3, and the positioning pins 3 are arranged along the radial direction of the shaft head 1, which can improve the stability of the connection between the shaft head 1 and the intermediate sleeve 2 and avoid the occurrence of shaft stringing;

[0067] The intermediate sleeve 2 is made of gray cast iron, which has strong tensile strength and good wear resistance and heat resistance. It can decompose and buffer the tension and stress between the roller body and the shaft head 1, thereby avoiding cracking of the roller body due to excessive stress and extending the service life of the device; and gray cast iron has a higher surface roughness and can provide greater friction, thereby improving the transmission efficiency between the shaft head 1 and the roller body and preventing the roller body from slipping; at the same time, compared with commonly used forged alloys, gray cast iron products are easier to manufacture and their cost is reduced by about 40%, that is, the present application can reduce production costs while ensuring performance, thereby achieving energy saving and efficiency improvement.

[0068] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0069] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

Claims

1. A hot pressing assembly device, comprising a frame (4), characterized in that: A press-in assembly (5) and a fixing assembly (6) are respectively installed at both ends of the frame (4); a limit assembly (8) is installed on the frame (4); the limit assembly (8) can limit the fixing assembly (6); two auxiliary clamping assemblies (9) are arranged between the press-in assembly (5) and the fixing assembly (6); a clamp 1 (53) is arranged on the press-in assembly (5); a clamp 2 (64) is arranged on the fixing assembly (6); the clamp 1 (53), the clamp 2 (64) and the auxiliary clamping assembly (9) are arranged on the same axis; an alignment assembly (7) is installed on the press-in assembly (5) and the fixing assembly (6); the alignment assembly (7) facilitates the adjustment of the shaft head (1) and the pin hole on the intermediate sleeve (2) to be aligned; the press-in assembly (5) comprises a mounting frame (51); a motor 1 (54) is installed in the mounting frame (51); the clamp 1 (53) rotates The auxiliary clamping assembly (9) is dynamically mounted on a mounting frame (51), the clamp 1 (53) is fixed on the output shaft of the motor 1 (54), the auxiliary clamping assembly (9) comprises two hydraulic rods 3 (91), the hydraulic rods 3 (91) are respectively fixed on the press-in assembly (5) or the fixing assembly (6), the output shaft of the hydraulic rod 3 (91) points to the side away from the fixed position, the output shafts of the two hydraulic rods 3 (91) on the same side are commonly connected to a mounting plate (92), the mounting plate (92) is mounted with a clamp 3 (93), the center of the clamp 3 (93) is coaxial with the clamp 1 (53), the clamp 3 (93) comprises two hydraulic rods 4 (931), the two hydraulic rods 4 (931) are symmetrically arranged on the same horizontal plane, the output shafts of the two hydraulic rods 4 (931) are arranged opposite to each other, and the output shafts of the two hydraulic rods 4 (931) are both connected to a V-shaped block (932).

2. A hot pressing assembly device according to claim 1, characterized in that: The alignment component (7) comprises a slide groove (71), and the two ends of the frame (4), the mounting frame (51) and the fixing component (6) are all provided with a slide groove (71), and a track rod (72) is slidably connected in all the slide grooves (71), and a limit strip (721) is axially arranged on the track rod (72), and two sliders (73) are slidably connected on the track rod (72) and the limit strip (721), and a slide rod (74) is slidably connected on the slider (73), and one end of the slide rod (74) points to the axis of the clamp (53) and is movably provided with a plug (75), and the plug (75) can be engaged with the pin hole.

3. A hot pressing assembly device according to claim 1, characterized in that: The clamp one (53) comprises a base plate (531), on which a plurality of hydraulic rods one (532) are evenly mounted, the output shafts of the plurality of hydraulic rods one (532) all point to the axis of the clamp one (53), and an extrusion block (533) is connected to the output shaft of the hydraulic rod one (532). The clamp two (64) has the same structure as the clamp one (53).

4. A hot pressing assembly device according to claim 1, characterized in that: The frame (4) comprises a base (41), the two ends of the base (41) are respectively connected to a right fixing plate (42) and a left fixing plate (43), a hydraulic cylinder (52) is mounted on the left fixing plate (43), and the hydraulic cylinder (52) can push the pressing component (5) to move in the direction of the fixing component (6).

5. A hot pressing assembly device according to claim 4, characterized in that: The fixing assembly (6) comprises an abutment plate (63), the abutment plate (63) is slidably connected to the base (41), the second clamp (64) is mounted on the abutment plate (63), the frame (4) is mounted with a second motor (61), the output shaft of the second motor (61) is connected with a screw rod (62), the screw rod (62) is rotatably connected to the frame (4), and the abutment plate (63) is threadedly connected to the screw rod (62).

6. A hot pressing assembly device according to claim 5, characterized in that: The limiting assembly (8) comprises a plurality of limiting rods (81) and a plurality of limiting rods (82); the limiting rods (81) are fixed on the base (41); the abutting plate (63) is slidably connected to the limiting rods (81); the limiting rods (82) are fixed on the abutting plate (63); the limiting rods (82) are slidably connected to the right fixed plate (42); a plurality of limiting grooves (811) are evenly arranged on the limiting rods (81) and the limiting rods (82); the abutting plate (63) and the right fixed plate (42) are correspondingly mounted with hydraulic rods (83); a clamping block (84) is fixed on the output shaft of the hydraulic rods (83); and the clamping block (84) can be correspondingly engaged with the limiting grooves (811).

7. A hot pressing assembly device according to claim 6, characterized in that: A scale bar (44) is connected between the right fixing plate (42) and the left fixing plate (43), a receiving groove (631) is provided on a side of the abutting plate (63) facing the press-in assembly (5), and a pressure detector (632) is installed at the bottom of the receiving groove (631).

8. A crushing roller shaft head assembly structure assembled using the hot pressing assembly device according to claim 1, comprising a shaft head (1), characterized in that: The shaft head (1) is pre-set to have an intermediate sleeve (2) sleeved on one end connected to the roller body. The shaft head (1) and the intermediate sleeve (2) are in interference fit. A plurality of pin holes are symmetrically provided between the intermediate sleeve (2) and the shaft head (1). Positioning pins (3) are connected to the plurality of pin holes. The positioning pins (3) are arranged along the radial direction of the shaft head (1). The intermediate sleeve (2) is made of grey cast iron.

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