CN110523780A - A Quick Replacement Device for Pad Blocks of Universal Rolling Mill - Google Patents

Abstract

The invention discloses a quick-changing device for cushion blocks of a universal rolling mill, which comprises a manual hydraulic moving vehicle, a bracket device is fixed on the chassis of the manual hydraulic moving vehicle, and wedge-shaped guide plates are fixed at the front and rear ends of the top of the bracket device. A load-bearing pallet is placed on the support device, and a screw device is installed in the middle of the manual hydraulic truck in the support device, and the output end of the screw device is connected to the bottom of the load-bearing pallet through a thread pair , the upper surface of the weighing tray is fixed with a plurality of universal ball bearings, and the universal rolling mill roll gap adjustment block is placed on the universal ball bearings. The present invention adopts the method of lifting and lowering the manual hydraulic transfer vehicle, moving the universal ball bearing laterally, and fine-tuning the positioning of the wedge-shaped guide plate to quickly and accurately position the roll gap adjustment pad of the universal rolling mill into the slot at the bottom of the bearing seat of the rolling mill, which greatly improves the universal rolling mill. The replacement speed of the pads of the rolling mill greatly reduces the labor intensity.

Description

A Quick Replacement Device for Pad Blocks of Universal Rolling Mill

technical field

The invention relates to a pad quick replacement device, in particular to a universal rolling mill pad quick replacement device.

Background technique

At present, the universal rolling mill is one of the core equipment of the rail beam rolling production line, and the roll gap plays a decisive role in key indicators such as the dimensional accuracy of the rail beam section steel products. The universal rolling mill pad quick replacement device can quickly replace the roll gap adjustment pad, which is of great significance to the improvement of rolling efficiency. The replacement of the traditional universal rolling mill roll gap adjustment block adopts the method of drilling holes on the block and lifting and installing it by electric hoist. However, due to the low positioning accuracy of the electric hoist in this installation method, and the narrow space under the bearing housing of the rolling mill, the view of the installation process is limited, resulting in a heavy workload and difficult operation during the replacement process. And because the transportation distance of the electric hoist is short, long-distance transportation cannot be realized.

Contents of the invention

According to the technical problem raised above, a universal rolling mill spacer quick replacement device is provided. The technical means adopted in the present invention are as follows:

A quick replacement device for pads in a universal rolling mill, comprising a manual hydraulic transport vehicle, a support device is fixed on the chassis of the manual hydraulic transport vehicle, wedge-shaped guide plates are fixed at the front and rear ends of the top of the support device, and the support device A load-bearing tray is placed on the weighing tray, and the front and rear ends of the weighing tray are respectively slidably connected with the two wedge-shaped guide plates, and the middle part of the manual hydraulic moving vehicle is equipped with a screw device in the bracket device. The extension direction of the screw device is parallel to the length direction of the manual hydraulic truck, and the output end of the screw device is connected to the bottom of the carrying tray through a threaded pair, and the middle part of the front end of the manual hydraulic truck is provided with a driving device for driving the movement of the screw device;

A plurality of universal ball bearings are fixed on the upper surface of the weighing tray, and the roll gap adjustment block of the universal rolling mill is placed on the universal ball bearings.

The bracket device includes a bottom bracket fixedly connected with the chassis of the manual hydraulic truck and a middle bracket arranged above the bottom bracket fixedly connected with the bottom bracket, and the wedge-shaped guide plate is fixedly connected with the middle bracket .

The bottom end of the middle bracket is processed with multiple groups of through holes, and each group of through holes is evenly arranged in the vertical direction, and each group of through holes includes a plurality of through holes evenly arranged in the horizontal direction. The bottom bracket is connected with the middle bracket through a pin shaft penetrating through one group of the through hole groups. The setting of multiple sets of through hole groups can meet the installation requirements of the universal rolling mill roll gap adjustment pads of different thicknesses.

The driving device is a hand wheel, the hand wheel is screwed to the input end of the screw device, and the axis of the hand wheel coincides with the axis of the screw device.

In use: place the universal rolling mill bearing seat on the bearing seat placement platform, the manual hydraulic truck moves to the designated position, and lift the universal rolling mill roll gap adjustment pad to a suitable height by moving the handle of the manual hydraulic truck Finally, the universal rolling mill roll gap adjustment pad is moved laterally through the universal ball bearing, and the hand wheel is turned to drive the screw device to move, so that the pressure-bearing tray is placed on the wedge-shaped guide plate slide, and fine-tune the height direction of the universal rolling mill roll gap adjustment pad to realize the accurate positioning between the universal rolling mill roll gap adjustment pad and the slot at the bottom of the universal rolling mill chock. The roll gap adjustment block of the universal rolling mill is pushed into the slot of the roll bearing seat and fastened with the bolts to complete the installation of the roll gap adjustment block of the universal rolling mill. The block removal process can be reversed according to the original order.

The present invention has the following advantages:

1. The present invention adopts the method of lifting and lowering the manual hydraulic truck, moving the universal ball bearing laterally, and fine-tuning the positioning of the wedge-shaped guide plate to quickly and accurately position the roll gap adjustment pad of the universal rolling mill into the slot at the bottom of the bearing seat of the rolling mill, which greatly improves the The replacement speed of the pads of the universal rolling mill is improved, and the labor intensity is greatly reduced.

2. The present invention takes into account the rapid lifting of the hydraulic system of the manual hydraulic transport vehicle and the accurate positioning of the mechanical structure, and has the characteristics of simple mechanism and fast replacement speed.

3. The present invention uses a manual hydraulic transport vehicle as a transport lifting element, which greatly improves the transport and lifting efficiency, and greatly reduces the difficulty of operation and labor intensity. Changing the traditional electric hoist lifting and installation method, the designed installation method of quick lateral movement of the universal ball bearing and fine adjustment of the wedge-shaped guide plate ensures that the roll gap adjustment pad of the universal rolling mill can be quickly and accurately installed in the slot at the bottom of the bearing seat of the rolled piece. Realize the rapid replacement of the roll gap adjustment pad of the universal rolling mill, and ensure the rhythm of rolling production.

Based on the above reasons, the present invention can be widely promoted in fields such as universal rolling mills.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

Fig. 1 is a schematic structural diagram of a quick replacement device for pads of a universal rolling mill in a specific embodiment of the present invention.

Fig. 2 is a schematic diagram of the structure of a universal rolling mill pad quick replacement device for replacing the universal rolling mill roll gap adjustment pad in a specific embodiment of the present invention.

Figure 3 is an enlarged view of part A in Figure 2.

Fig. 4 is an enlarged view of part B in Fig. 2 .

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

As shown in Figures 1 to 4, a quick replacement device for pads in a universal rolling mill includes a manual hydraulic moving vehicle 1, a support device 2 is fixed on the chassis of the manual hydraulic moving vehicle 1, and the front and rear of the top of the support device 2 Both ends are fixed with wedge-shaped guide plates 3 by bolts, and a load-bearing tray 4 is placed on the support device 2, and the front and rear ends of the weighing tray 4 are respectively slidably connected with the two wedge-shaped guide plates 3. The middle part of the manual hydraulic truck 1 is equipped with a lead screw device 5 in the bracket device 2, the extension direction of the screw device 5 is parallel to the length direction of the manual hydraulic truck 1, and the screw device 5 The output end of the upper end is connected with the bottom of the carrying tray 4 through a thread pair, and the middle part of the front end of the manual hydraulic moving vehicle 1 is provided with a driving device for driving the movement of the screw device 5;

A plurality of universal ball bearings 6 are fixed on the upper surface of the weighing tray 4 , and roll gap adjustment pads 7 of the universal rolling mill are placed on the universal ball bearings 6 .

The support device 2 includes a bottom bracket 8 fixedly connected with the chassis of the manual hydraulic truck 1 by bolts and a middle bracket 9 arranged above the bottom bracket 8 and fixedly connected with the bottom bracket 8. The wedge guide The plate 3 is fixedly connected with the middle bracket 9 .

The bottom end of the middle bracket 9 is processed with multiple groups of through holes, and each group of through holes is evenly arranged in the vertical direction, and each group of through holes includes a plurality of through holes 10 evenly arranged in the horizontal direction. The bottom bracket 8 is connected to the middle bracket 9 through a pin shaft 11 passing through one of the through hole groups. The setting of multiple sets of through hole groups can meet the installation requirements of the universal rolling mill roll gap adjustment pad 7 with different thicknesses.

The driving device is a handwheel 12 , which is screwed to the input end of the screw device 5 , and the axis of the handwheel 12 coincides with the axis of the screw device 5 .

In use state: the universal rolling mill chock 13 is placed on the bearing pedestal 14, the manual hydraulic transfer vehicle 1 moves to a designated position, and the universal rolling mill roll gap adjustment pad is moved by moving the handle of the manual hydraulic transfer vehicle 1 7 After being lifted to a suitable height, the universal rolling mill roll gap adjustment pad 7 is moved laterally through the universal ball bearing 6, and the hand wheel 12 is turned to drive the screw device 5 to move, so that the bearing The pressing tray 4 slides on the wedge-shaped guide plate 3, and fine-tunes the roll gap adjustment pad 7 of the universal rolling mill in the height direction, so as to realize the joint between the roll gap adjustment pad 7 of the universal rolling mill and the bearing seat 13 of the universal rolling mill. Accurate positioning between the slots 15 at the bottom, after alignment, push the roll gap adjustment block 7 of the universal mill into the slot 15 and fasten it with bolts to complete the installation of the roll gap adjustment block 7 of the universal mill . The block removal process can be reversed according to the original order.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than limiting them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the various embodiments of the present invention. scope.

Claims (4)

1. A universal rolling mill spacer quick replacement device, characterized in that it comprises a manual hydraulic truck, a bracket device is fixed on the chassis of the manual hydraulic truck, and wedge-shaped guides are fixed at the front and rear ends of the top of the bracket device plate, a load-bearing tray is placed on the support device, and the front and rear ends of the weighing tray are respectively slidably connected with the two wedge-shaped guide plates, and the middle part of the manual hydraulic moving vehicle is installed in the support device. A lead screw device, the extension direction of the lead screw device is parallel to the length direction of the manual hydraulic moving vehicle, and the output end of the lead screw device is connected with the bottom of the carrying tray through a thread pair, and the manual hydraulic moving vehicle The middle part of the front end of the motor car is provided with a driving device for driving the movement of the screw device; A plurality of universal ball bearings are fixed on the upper surface of the weighing tray, and the roll gap adjustment block of the universal rolling mill is placed on the universal ball bearings. 2. A universal rolling mill spacer quick replacement device according to claim 1, characterized in that: the support device includes a bottom support fixedly connected to the chassis of the manual hydraulic transport vehicle and is arranged above the bottom support The middle bracket is fixedly connected with the bottom bracket, and the wedge-shaped guide plate is fixedly connected with the middle bracket. 3. A universal rolling mill spacer quick replacement device according to claim 2, characterized in that: the bottom end of the middle bracket is processed with multiple groups of through holes, and each group of through holes is uniform along the vertical direction. Arranged, each group of through hole groups includes a plurality of through holes uniformly arranged in the horizontal direction, and the bottom bracket passes through the pin shaft of a group of through hole groups in the plurality of through hole groups and the middle bracket connect. 4. A universal rolling mill pad quick replacement device according to claim 1, characterized in that: the driving device is a hand wheel, the hand wheel is screwed to the input end of the screw device, and the The axis of the handwheel coincides with the axis of the screw device.