An adjustable device mounting arrangement
By using adjustable equipment installation devices in railway passenger cars and EMU trains, the problems of cumbersome workpiece installation and unstable fastening have been solved, enabling precise positioning and rapid installation, and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CRRC CHANGCHUN RAILWAY VEHICLES CO LTD
- Filing Date
- 2023-06-01
- Publication Date
- 2026-05-15
AI Technical Summary
The installation process of railway passenger cars and EMUs is complicated, requires multiple people to operate, and is prone to displacement after fastening, resulting in unstable structure and poor reliability.
An adjustable equipment installation device is adopted, including a fixed base, a positioning pin assembly, a movable seat, a locking device, and a compensation block. Through the cooperation of wedge-shaped slides and positioning holes, the precise positioning and rapid installation of the workpiece can be achieved.
It reduces installation personnel and time, improves the accuracy and adjustability of workpiece installation, and enhances the stability and production efficiency of the equipment.
Smart Images

Figure CN116587020B_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of rail vehicle manufacturing technology, and in particular relates to an adjustable equipment installation device. Background Technology
[0002] Currently, most workpieces in railway passenger cars and high-speed trains are adjusted and installed by welding or riveting structures with elongated holes. The installation of larger workpieces typically requires 2 to 4 people. First, the workpiece is lifted to the position shown on the drawing, aligned with the mounting base, and marked. Then, the workpiece is moved aside for on-site drilling and tapping. It is then lifted back to the original position and finally secured to the mounting base with fasteners. If the workpiece's position changes slightly and adjustment is needed, the above steps must be repeated to complete the installation. Furthermore, poor alignment between the workpiece and the mounting base can lead to ineffective fastening and loosening of the fasteners. The adjustment process, using bolts and nuts for constraint, is cumbersome, requires many workers, and is prone to displacement after fastening, resulting in structural instability and poor reliability. Summary of the Invention
[0003] This invention aims to solve the problems of cumbersome processes, numerous construction personnel, easy displacement after fastening, unstable structure, and poor reliability in the installation and adjustment of workpieces for railway passenger cars and EMUs. It provides an adjustable equipment installation device that ensures the accuracy of equipment installation, reduces the number of installers and time, enhances the adjustability of equipment installation, and improves production efficiency.
[0004] To achieve the above-mentioned objectives, this invention provides an adjustable equipment mounting device for mounting a workpiece onto a mounting base. The device includes a fixed base, a positioning pin assembly, a movable seat, and a locking device. The fixed base has a wedge-shaped groove, the bottom of which is fixed to the mounting base. A positioning hole for mates with the positioning pin assembly is machined on the upper part of the wedge-shaped groove. The movable seat has a flat lower surface and a stepped upper surface, with a thinner section designated as a first plane and a thicker section as a second plane. The first plane has a longitudinal groove containing a first mounting hole for mounting the locking device. The end of the second plane has a... A transverse slide groove for installing workpieces is provided near the transverse slide groove, and a second mounting hole for installing a positioning pin assembly is provided in the transverse slide groove; the positioning pin assembly passes through the lower end of the second mounting hole and is inserted into the positioning hole; the locking device includes a first slider and a locking block connected to its upper end by a rotating shaft, the shape of the lower end of the first slider matches the wedge-shaped slide groove of the fixed base 1, one end of the locking block is a cam, the cam is connected to the rod-shaped upper end of the first slider by a rotating shaft, and the other end is a pressure rod, when the pressure rod is pressed down, the cam presses the movable seat; a second slider for matching the wedge-shaped slide groove is provided on the lower surface of the transverse slide groove of the movable seat.
[0005] Furthermore, the positioning pin assembly includes a positioning pin and a lever for lifting the positioning pin. The positioning pin is a stepped cylinder with a lower diameter larger than the upper diameter. The upper end of the positioning pin extends out of the second mounting hole and is connected to the lever on the upper side of the movable seat via a thread. The second mounting hole, which mates with the positioning pin, is also stepped.
[0006] Furthermore, it also includes a spring, which is fitted on the upper part of the locating pin and located in the space enclosed by the locating pin and the movable seat. The upper part of the locating pin extends out of the second mounting hole and is threadedly connected to the lever on the upper side of the movable seat.
[0007] Furthermore, the paddle is rectangular, and a handle is machined on the paddle along the length of the rectangle. The width of the paddle matches the width of the transverse groove, and the width is just right to fit into the transverse groove. The length of the paddle is greater than the width of the transverse groove. When the paddle is lifted and rotated to a position where the handle is perpendicular to the transverse groove, the paddle is placed on the upper side of the transverse groove, and the positioning pin is lifted. When the paddle is rotated to a position where the handle is parallel to the transverse groove, the paddle is placed into the transverse groove, and the positioning pin moves down.
[0008] Furthermore, it also includes a compensation block, the lower end of which is a second slider, the shape of which matches the wedge-shaped groove of the fixed base, and the upper end is a mounting plate. An inner groove is provided on the lower side of the transverse groove of the movable seat. The mounting plate at the upper end of the compensation block is inserted into the inner groove, and the mounting plate is fixedly connected to the upper side of the inner groove.
[0009] This invention, based on the location requirements of the installation equipment, fixes the base of this device to the vehicle body using bolts, rivets, or welding. Then, the movable seat is adjusted to the installation interface position of the equipment, the movable seat is positioned and locked, and the equipment is connected to the sliding groove above the movable seat, thus completing the equipment installation. This ensures installation accuracy, reduces the number of installers and time, enhances the adjustability of the equipment installation, and improves production efficiency. This invention successfully solves the problems of difficult adjustment, easy displacement, labor-intensive and time-consuming installation, and poor reliability of workpieces in railway passenger cars or high-speed trains. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the workpiece installation according to the present invention;
[0011] Figure 2 A schematic diagram of the installation structure for the movable seat;
[0012] Figure 3 This is a schematic diagram of the fixed base structure;
[0013] Figure 4 This is a schematic diagram of the movable seat structure;
[0014] Figure 5 This is a schematic diagram of the positioning pin assembly structure;
[0015] Figure 6This is a schematic diagram of the locking device structure;
[0016] Figure 7 This is a schematic diagram of the compensation block structure;
[0017] The components include: 1. Fixed base; 101. Wedge-shaped groove; 102. Positioning hole; 2. Positioning pin assembly; 201. Positioning pin; 202. Paddle; 203. Handle; 3. Spring; 4. Movable seat; 401. First plane; 402. Second plane; 403. Longitudinal groove; 404. First mounting hole; 405. Transverse groove; 406. Transverse groove; 407. Second mounting hole; 5. Locking device; 501. First slider; 502. Locking block; 6. Compensation block; 601. Second slider; 602. Mounting plate; 7. Screw; 8. Mounting base; 9. Workpiece. Detailed Implementation
[0018] To better understand the purpose, structure, and function of the present invention, an adjustable device installation apparatus of the present invention will be described in further detail below with reference to the accompanying drawings.
[0019] Reference Figure 1 The adjustable equipment mounting device includes a fixed base 1, a positioning pin assembly 2, a spring 3, a movable seat 4, a locking device 5, a compensation block 6, and a screw 7.
[0020] The fixed base 1 is provided with a wedge-shaped groove 101, and a fixed countersunk hole is provided at the bottom of the groove for fixing the fixed base 1 on the installation foundation. The countersunk hole can be set in single or multiple rows on both sides, or in single or multiple rows on one side, depending on the installation requirements. The length of the groove can be increased or decreased in its cross-sectional direction as needed. The upper part of the groove is machined with a positioning hole 102 that cooperates with the positioning pin assembly 2.
[0021] The positioning pin assembly 2 includes a positioning pin 201 and a lever 202. The positioning pin 201 is a stepped cylinder with a lower diameter larger than the upper diameter. The upper end of the positioning pin 201 is connected to the lever 202 by a thread. The lever 202 is rectangular.
[0022] The movable seat 4 has a flat lower surface and a stepped upper surface. The thinner part is the first plane 401, and the thicker part is the second plane 402. The first plane 401 has a longitudinal groove 403, and a first mounting hole 404 for installing the locking device 5 is opened in the longitudinal groove 403. The end of the second plane 402 has a transverse sliding groove 405 for installing the workpiece. Near the transverse sliding groove 405, there is a transverse groove 406, and a second mounting hole 407 for installing the positioning pin is opened in the transverse groove 406. The second mounting hole 407 cooperates with the positioning pin 201 and is also stepped. The spring is fitted on the upper part of the positioning pin 201 and is located in the space enclosed by the positioning pin 201 and the movable seat 4. The upper part of the positioning pin extends out of the second mounting hole and is threadedly connected to the paddle on the upper side of the movable seat. The paddle 202 is rectangular, and a handle 203 is machined on the paddle 202 along the length of the rectangle. The width of the paddle 202 matches the width of the transverse groove 406, and the width is just right to fit into the transverse groove 406. The length of the paddle 202 is greater than the width of the transverse groove 406. The paddle 202 is lifted and rotated to a position where the handle 203 is perpendicular to the transverse groove 406. The paddle 202 is placed on the upper side of the transverse groove, and the positioning pin is lifted. The paddle 202 is rotated to a position where the handle 203 is parallel to the transverse groove 406. The paddle 202 is placed into the transverse groove, and the positioning pin moves down.
[0023] The locking device 5 includes a first slider 501 and a locking block 502 whose upper end is connected by a rotating shaft. The first slider 501 is a component that slides into the fixed base. Its lower end is shaped to match the wedge-shaped groove 101 of the fixed base 1, and its upper part is rod-shaped. One end of the locking block 502 is a cam, which is connected to the rod-shaped upper end of the first slider 501 by a rotating shaft. The other end is a pressure rod. When the pressure rod is pressed down, the cam presses the movable seat 4, fixing the entire movable seat 4 on the fixed base 1, making it stable and reliable.
[0024] The lower end of the compensation block 6 is the second slider 601, which is shaped to match the wedge-shaped groove of the fixed base. The upper end is the mounting plate 602 with four mounting holes. The lower side of the transverse groove 405 of the movable seat 4 is provided with an inner groove. The mounting plate 602 at the upper end of the compensation block is inserted into the inner groove and fixed by screws 7 through the mounting holes and screwed into the upper side of the inner groove of the movable seat 4.
[0025] In use, first fix the fixed base 1 to the mounting base 8 according to the drawing position. Then, install the first and second sliders into the wedge-shaped groove 101. Next, connect the workpiece 9 to the movable seat 4. Hold the handle 203, lift the lever 202 and rotate it to a position where the handle 203 is perpendicular to the transverse groove 406. Place the lever 202 on the upper side of the transverse groove, lift the positioning pin, and move the movable seat 4 to move the workpiece freely in the groove direction. After adjusting the position, rotate the lever 202 to a position where the handle 203 is parallel to the transverse groove 406, place the lever 202 into the transverse groove, and lower the positioning pin. The workpiece is moved into the positioning hole 102, and the pressure plate of the locking device 5 is pressed down to complete the installation. When the workpiece needs to be moved to a certain position, simply lift the locking device 5 upwards, hold the handle 203, lift the lever 202 and rotate it until the handle 203 is perpendicular to the transverse groove 406. The lever 202 is placed on the upper side of the transverse groove, the positioning pin is lifted, and the workpiece can move along the slide groove to the new position. Then, lower the positioning pin 201 and press down the pressure plate of the locking device 5 to complete the installation in the new position. There is no need to pick up the workpiece and reassemble, adjust, and install it. The entire installation process can be operated by only 1-2 people. The positioning pin extends into the positioning hole to limit the movement. The spring is a cylindrical helical spring, which pushes the positioning pin into the fixed base 1 so that it will not come out.
Claims
1. An adjustable equipment mounting device for mounting a workpiece (9) onto a mounting base (8), characterized in that: The device includes a fixed base (1), a positioning pin assembly (2), a movable seat (4), and a locking device (5). The fixed base (1) is provided with a wedge-shaped groove (101). The bottom of the wedge-shaped groove (101) is fixed on the mounting base (8). The upper part of the wedge-shaped groove (101) is machined with a positioning hole (102) that mates with the positioning pin assembly (2). The movable seat (4) has a flat lower surface and a stepped upper surface. The thinner part is the first plane (401), and the thicker part is the second plane (402). The first plane (401) is provided with a longitudinal groove (403). The longitudinal groove (403) is provided with a first mounting hole (404) for installing the locking device (5). The end of the second plane (402) is provided with a transverse groove (405) for installing the workpiece (9). The second plane (402) is provided with a transverse groove (405) near the transverse groove (405). The device is provided with a transverse groove (406), and a second mounting hole (407) for installing a positioning pin assembly is provided in the transverse groove (406); the positioning pin assembly (2) passes through the lower end of the second mounting hole (407) and is inserted into the positioning hole (102); the locking device (5) includes a first slider (501) and a locking block (502) whose upper end is connected by a rotating shaft. The shape of the lower end of the first slider (501) matches the wedge-shaped groove (101) of the fixed base (1). One end of the locking block (502) is a cam, which is connected to the rod-shaped upper end of the first slider (501) by a rotating shaft. The other end is a pressure rod. When the pressure rod is pressed down, the cam presses the movable seat (4); the lower surface of the transverse groove (405) of the movable seat (4) is provided with a second slider (601) for matching the wedge-shaped groove (101).
2. The adjustable equipment mounting device according to claim 1, characterized in that: The positioning pin assembly (2) includes a positioning pin and a lever (202) for lifting the positioning pin. The positioning pin is a stepped cylinder with a lower diameter larger than the upper diameter. The upper end of the positioning pin extends out of the second mounting hole (407) and is connected to the lever (202) on the upper side of the movable seat (4) by a thread. The second mounting hole (407) cooperates with the positioning pin and is also stepped.
3. The adjustable equipment mounting device according to claim 2, characterized in that: It also includes a spring (3), which is fitted on the upper part of the positioning pin and located in the space enclosed by the positioning pin and the movable seat (4). The upper part of the positioning pin extends out of the second mounting hole (407) and is threadedly connected to the paddle (202) on the upper side of the movable seat (4).
4. The adjustable equipment mounting device according to claim 3, characterized in that: The paddle (202) is rectangular, and a handle (203) is machined on the paddle (202) along the length of the rectangle. The width of the paddle (202) matches the width of the transverse groove (406), and the width is just right to fit into the transverse groove (406). The length of the paddle (202) is greater than the width of the transverse groove (406). The paddle (202) is lifted and rotated to a position where the handle (203) is perpendicular to the transverse groove (406). The paddle (202) is placed on the upper side of the transverse groove (406), and the positioning pin is lifted. The paddle (202) is rotated to a position where the handle (203) is parallel to the transverse groove (406). The paddle (202) is placed into the transverse groove (406), and the positioning pin moves down.
5. An adjustable equipment mounting device according to any one of claims 1 to 4, characterized in that: It also includes a compensation block (6), the lower end of which is a second slider (601), the shape of which matches the wedge-shaped groove (101) of the fixed base (1), and the upper end is a mounting plate (602). The lower side of the transverse groove (405) of the movable seat (4) is provided with an inner groove, and the mounting plate (602) at the upper end of the compensation block (6) is inserted into the inner groove. The mounting plate (602) is fixedly connected to the upper side of the inner groove.