CN215931530U

CN215931530U - Fixing device for carriage strength test

Info

Publication number: CN215931530U
Application number: CN202121698777.1U
Authority: CN
Inventors: 冯万东; 周金应; 徐磊; 程前; 谢守旭; 姜胡
Original assignee: Caac Chongqing Automobile Inspection Co ltd; China Automotive Engineering Research Institute Co Ltd
Current assignee: Caac Chongqing Automobile Inspection Co ltd; China Automotive Engineering Research Institute Co Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-01
Anticipated expiration: 2031-07-23

Abstract

The utility model relates to the field of strength test tools, in particular to a fixing device for a carriage strength test, which is used for the strength test of a front wall and a rear wall of a carriage. The device utilizes the fastening point on the floor of the carriage as a fixing point. When the strength test of the front wall and the rear wall of the carriage is carried out, the fixing device comprises a transverse assembly and a longitudinal assembly, and the transverse assembly and the longitudinal assembly are detachably connected to form a square frame capable of adjusting the area; the front part and the bottom part of the longitudinal component can be detachably connected with a first fastening component and a second fastening component, and the first fastening component and the second fastening component are connected with four symmetrical fastening points on the floor in a front-back, left-right and left-right mode. When the strength test of the side wall of the carriage is carried out, the fixing device comprises a hinge assembly and a telescopic assembly capable of adjusting the length, and the hinge assembly and the telescopic assembly are respectively connected with the vertical frame and a fastening point on the floor of the carriage. The device of the utility model utilizes the already assembled fastening points on the carriage floor, and is fast, convenient, firm and reliable in installation.

Description

Fixing device for carriage strength test

Technical Field

The utility model relates to the field of strength test tools, in particular to a fixing device for a carriage strength test.

Background

Vehicles are tools for carrying people or goods, such as refrigerated vehicles, trailers, and towing vehicles, and so on, and therefore, the safety of vehicles is of great concern. In order to improve the safety of the vehicle, it is necessary to test various performances of the vehicle, such as the strength of the vehicle compartment.

At present, a compartment strength test device comprises a vertical frame, an air bag, a composite board, an air compressor, an air pressure gauge and a deformation measuring device. In the process of carrying out the strength test of the carriage, the air bag can transmit the test pressure to the blocking and fixing device on one side when expanding, namely the test pressure is transmitted to the vertical frame on the other side through the composite board. In order to prevent the vertical frame from moving, a hole is usually drilled in the floor of the vehicle body, and the vertical frame is fixed to the floor of the vehicle body by a saddle bolt. However, it is difficult to make holes in the floor of the car, and the floor is easily deformed or damaged during the test.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fixing device for a carriage strength test, which aims to solve the problem that a floor is deformed or damaged because a vertical frame of the existing strength test is fixed on the floor of a carriage through punching.

The fixing device for the carriage strength test is used for the front wall or rear wall strength test of a carriage and comprises a transverse component and a longitudinal component, wherein the transverse component can block the vertical frame from moving horizontally, and the transverse component and the longitudinal component are detachably connected to form a square frame capable of adjusting the area; the front of the longitudinal component is detachably connected with a first fastening component, the bottom end of the longitudinal component is detachably connected with a second fastening component, the first fastening component is connected with a fastening point towards one side of the front wall or the rear wall, the second fastening component is connected with a fastening point far away from one side of the front wall or the rear wall, and the connecting position of the first fastening component on the longitudinal component can be adjusted.

The beneficial effect of this scheme is:

the transverse assembly and the longitudinal assembly form a square frame, the square frame is fixed to a fastening point in the carriage through the first fastening assembly and the second fastening assembly, the transverse assembly of the fixing device is more uniformly stressed against the vertical frame, and the fixing device can be stably pressed against the vertical frame; the device utilizes the already assembled fastening point on the carriage floor, and the installation is swift convenient and firm reliable.

Further, the transverse assembly comprises a cross rod and a transverse connecting piece, the longitudinal assembly comprises two supporting pieces, the cross rod is detachably connected to the two supporting pieces, and the transverse connecting piece is detachably connected to the bottom ends of the two supporting pieces.

The beneficial effects are that: the square frame structure is formed by connecting the cross rods, the transverse connecting pieces and the two supporting pieces, the whole structure is simple, the assembly is simple, and the operation and the use are convenient.

Furthermore, the cross rod is provided with two through grooves for adjusting the connecting position of the support piece, the through grooves are mutually independent, the through grooves are respectively positioned at two ends of the cross rod, the cross rod is provided with a plurality of lightening holes, and the lightening holes are positioned between the two through grooves.

The beneficial effects are that: through two logical grooves on the horizontal pole, be convenient for adjust the fixed position of horizontal pole, a plurality of lightening holes can alleviate the weight of device.

Further, the transverse connecting piece is a first turnbuckle, and the end parts of screw rods at two ends of the first turnbuckle are U-shaped.

The beneficial effects are that: the threaded rods at the two ends of the transverse connecting piece are convenient for adjusting the length of the transverse connecting piece, and meanwhile, the U-shaped end is convenient for being fixed on the supporting piece.

Furthermore, a plurality of connecting holes are formed in the supporting piece, and any connecting hole can be used for connecting the cross rod with the supporting piece through a bolt.

The beneficial effects are that: through different connecting holes, the height of the cross rod is convenient to adjust, and meanwhile, the weight of the device can be reduced.

Further, the first fastening component comprises a second turnbuckle, the end part of a screw rod at one end of the second turnbuckle is U-shaped, and the end part of a screw rod at the other end of the second turnbuckle is O-shaped.

The beneficial effects are that: the first tie down assembly is easily adjusted to maintain the support member in a vertical position.

The second fastening component comprises a stop block and an L-shaped fastening seat, a fastening hole and two bolt holes with central axes parallel to each other are formed in the vertical section of the fastening seat, the diameter of each bolt hole is smaller than that of the fastening hole, the bolt holes are located below the fastening holes and are symmetrically distributed, the fastening holes are used for being fastened with a support and connected with first turnbuckle screws, the bolt holes are used for being connected with the support, a mounting seat capable of being inserted into a fastening point is fixedly arranged at the end of the horizontal section of the fastening seat, a threaded hole is formed in the mounting seat, the mounting seat is a cylinder, a through hole is formed in the stop block, a spanning groove capable of spanning the mounting seat is formed in the stop block, and the spanning groove is located below the through hole and communicated with the through hole.

The beneficial effects are that: the bottom edge of the square frame can be transversely tensioned through fastening holes on the left and right fastening seats by using first turnbuckle bolts. The fastening seat on the fastening seat is inserted into the fastening point, the connecting pin shaft is inserted into the through hole on the stop block and screwed into the threaded hole of the mounting seat, and the fastening point is clamped by the fastening seat and the stop block to prevent the fastening seat and the fastening point from falling off.

Still provide a carriage intensity test's fixing device for the lateral wall intensity test in carriage, including hinge subassembly and the flexible subassembly that can adjust length, hinge subassembly one end can be dismantled with the one end of flexible subassembly and be connected, hinge subassembly other end bolted connection is to vertical frame on, the flexible subassembly other end colludes on tying the fixed point.

The beneficial effect of this scheme is:

when carrying out the intensity test to the lateral wall in carriage, with the length adjustment of flexible subassembly to actual required length, with hinge subassembly and for the flexible subassembly bolt fastening together, fasten hinge subassembly and vertical frame through the screw, catch flexible subassembly and tie point, carry on spacingly to vertical frame to stop vertical frame and shift in the process of the test, whole simple structure, the size is small and exquisite, is convenient for carry out the intensity test to the lateral wall.

Further, hinge assembly includes first page or leaf and second page or leaf, first page or leaf becomes platelike, the second page or leaf becomes L shape, the mounting hole has all been seted up on the vertical section and the horizontal segment of second page or leaf, the one end of first page or leaf is followed along articulating with the horizontal segment end of second page or leaf.

The beneficial effects are that: hinge assembly can be connected with flexible subassembly through first page or leaf steadily to fasten to vertical frame through the second page or leaf, improve hinge assembly and vertical frame fixed stability.

Furthermore, the telescopic component is a third turnbuckle, the end part of a screw rod at one end of the third turnbuckle is in a hook shape and is connected with the fastening point, and the end part of a screw rod at the other end of the third turnbuckle is in an O shape and is connected with the first page.

The beneficial effects are that: the adjusting flange bolt can quickly and conveniently connect the fastening point and the first sheet.

Drawings

FIG. 1 is a front view of a first embodiment of a carriage strength test fixture of the present invention;

FIG. 2 is a front view of a vertical section of the tie down anchor of FIG. 1;

FIG. 3 is a longitudinal cross-sectional view of the stop of FIG. 1;

fig. 4 is a front view of a second embodiment of the fixing device for testing the strength of the carriage.

Detailed Description

The following is a more detailed description of the present invention by way of specific embodiments.

Reference numerals in the drawings of the specification include: the bolt comprises a cross rod 1, a support piece 2, a through groove 3, a lightening hole 4, a connecting hole 5, a first turnbuckle screw 6, a threaded rod 7, a fastening point 8, a second turnbuckle screw 9, a fastening seat 10, a fastening hole 11, a mounting seat 12, a stop block 13, a bolt hole 14, a third turnbuckle screw 15, a second leaf 16, a first leaf 18, a spanning groove 19 and a through hole 20.

Example one

A fixing device for a compartment strength test is used for the compartment front wall or rear wall strength test, and is shown in figure 1: the horizontal assembly can block the vertical frame from moving horizontally, and the horizontal assembly and the longitudinal assembly are detachably connected to form a square frame with an adjustable area. The front of the longitudinal component is detachably connected with a first fastening component, the front refers to one side facing the front wall or the rear wall, the bottom end of the longitudinal component is detachably connected with a second fastening component, the detachable connection is performed through a bolt and a nut, the first fastening component is connected with a fastening point facing one side of the front wall or the rear wall, the second fastening component is connected with a fastening point far away from one side of the front wall or the rear wall, and the connecting position of the first fastening component on the longitudinal component can be adjusted.

The longitudinal assembly comprises two support members 2 and the transverse assembly comprises a cross bar 1 and a transverse connector, the connection position of the first fastening assembly on the support members 2 is above the connection position of the second fastening assembly. Set up two logical grooves 3 of adjusting support piece 2 hookup location on horizontal pole 1, lead to groove 3 mutual independence, two logical grooves 3 do not communicate promptly, lead to groove 3 and are located the both ends department of horizontal pole 1 respectively, have seted up a plurality of lightening holes 4 on horizontal pole 1, and lightening hole 4 is located between two logical grooves 3.

A plurality of connecting holes 5 are formed in the supporting piece 2, any connecting hole 5 can be used for connecting the cross rod 1 with the supporting piece 2 through a bolt, and the supporting piece 2 can be made of an existing rectangular steel pipe.

The transverse connecting piece is a first turnbuckle screw 6, the end parts of lead screws at two ends of the first turnbuckle screw 6 are in a U shape, namely the structure of the first turnbuckle screw 6 comprises a connecting sleeve, a penetrating adjusting cavity is arranged in the axial direction of the connecting sleeve, threaded rods 7 are connected to the two ends of the connecting sleeve in a threaded manner, U-shaped fastening heads are integrally formed on the end parts, far away from the connecting sleeve, of the threaded rods 7, and the U-shaped fastening heads are detachably connected to the supporting piece 2 through pin shafts and connecting holes 5.

The first fastening component comprises a second turnbuckle 9, the end part of a lead screw at one end of the second turnbuckle 9 is U-shaped, the U-shaped end is connected to a fastening point in the carriage through a bolt, the end part of the lead screw at the other end of the second turnbuckle 9 is O-shaped, and the O-shaped end is connected to the supporting part 2 through a pin shaft.

The second fastening assembly comprises a stop block 13 and an L-shaped fastening seat 10, and the cross rod 1 is detachably connected to the two supporting pieces 2 through bolts, the through grooves 3 and the connecting holes 5. The transverse connection is connected to the support 2 and the tie-down seat 10 by the same pin. The section with the larger length of the fastening seat 10 is a horizontal section, the section with the smaller length of the fastening seat 10 is a vertical section, as shown in fig. 2, the vertical section of the fastening seat 10 is provided with a fastening hole 11 and two bolt holes 14 with central axes parallel to each other, the central axes of the fastening hole 11 and the bolt holes 14 are parallel to the horizontal section of the fastening seat 10, the diameters of the bolt holes 14 are smaller than those of the fastening hole 11, the bolt holes 14 are positioned below the fastening hole 11 and symmetrically distributed, the fastening hole 11 is used for fastening with the support member 2 and connecting with the first turnbuckle 6, the first turnbuckle 6 is connected with the support member 2 and the fastening seat 10 by the same pin shaft, the bolt holes 14 are used for connecting with the support member 2, and the support member 2 is provided with holes corresponding to the fastening hole 11 and the bolt holes 14; the end part of the horizontal section of the fastening seat 10 is provided with a mounting seat 12 capable of being inserted into a fastening point, the mounting seat 12 can be fixed on the fastening seat 10 by welding or other methods, a threaded hole is formed in the mounting seat 12, and the mounting seat 12 is a cylinder.

As shown in fig. 3, the stopper 13 is provided with a through hole 20, the stopper 13 is provided with a spanning groove 19 capable of straddling on the mounting seat 12, the spanning groove 19 is located below the through hole 20 and is communicated with the through hole 20, a ring at a fastening point is penetrated into the mounting seat 12, the stopper 13 straddles on the mounting seat 12, and is screwed into a threaded hole on the mounting seat 12 after being inserted into the through hole 20 on the stopper 13 through a connecting pin shaft.

The lightening holes 4 and the connecting holes 5 are all through holes, and the number and the diameter of the lightening holes 4 and the connecting holes 5 are set according to actual requirements.

The specific implementation process is as follows, taking the strength test of the front wall as an example:

when the strength test is carried out on the front wall of the carriage, the front wall refers to the inner wall of the carriage close to the cab, four symmetrical fastening points on the floor of the carriage close to the front wall or the rear wall are selected as fixing points of the whole test device, and the four symmetrical fastening points are bilaterally symmetrical. Adjusting the area of the square frame according to the experimental requirements, inserting the mounting seat 12 on the fastening seat 10 into the fastening point of the rear row, blocking the fastening point by the stop 13 at the other side of the fastening point, and fixing the stop on the mounting seat 12 by the connecting pin shaft penetrating through the through hole 20 on the stop 13 and screwing into the threaded hole on the mounting seat 12 of the fastening seat 10. The support member 2 is bolted to the two bolt holes 14 of the tie-down socket 10 and is locked by nuts. And a pin shaft penetrates through the fastening holes 11 of the support part 2 and the fastening seats 10 and is locked by a nut, the other end of the pin shaft is connected with the U-shaped end of the first turnbuckle 6 by a bolt, and the first turnbuckle 6 is adjusted until the left fastening seat 10 and the right fastening seat 10 are tightened. And connecting the U-shaped end of the second turnbuckle 9 to a front row fastening point of the floor by using a bolt, connecting the O-shaped end of the other end of the second turnbuckle 9 to the supporting piece 2 by using a pin shaft, and adjusting the second turnbuckle 9 to enable the supporting piece 2 to be vertical to the floor. Bolts penetrate through the through grooves 3 on the cross rod 1 and the connecting holes 5 on the supporting piece 2 to connect the cross rod 1 and the supporting piece 2 and are locked by nuts. The mounting portion of the fixture is now complete. The vertical frame is placed against the cross bar 1, the composite panel is fixed to the vertical frame at the side facing the front or rear wall, and the air bag is placed between the composite panel and the front wall. After the air compressor is started, compressed air is filled into the air bag, the air bag begins to expand along with the increase of pressure, the pressure is transmitted to the vertical frame through the composite board, the vertical frame leans against the cross rod 1, the movement of the cross rod 1 is limited by the supporting piece 2, the first turnbuckle 6, the fastening seat 10, the floor fastening point and the second turnbuckle 9, and the air bag can only expand towards the front wall.

The assembly process of the device of the first embodiment can be completed before the test, and the connection does not need to be assembled every time.

When the strength test is performed on the rear wall of the carriage, only the corresponding device needs to be moved to the rear wall for fixing, which is not described herein.

The whole device of the embodiment has simple structure, simple and quick test operation, and does not need to punch holes on the floor of the carriage to install the vertical frame.

Example two

The difference from the first embodiment is that, as shown in fig. 4, for the strength test of the side wall of the car, the side wall refers to the car body on both sides between the front wall and the rear wall of the car, and includes a hinge assembly and a telescopic assembly capable of adjusting the length, one end of the hinge assembly is detachably connected with one end of the telescopic assembly, the other end of the hinge assembly is bolted to the vertical frame, and the other end of the telescopic assembly is hooked on the fastening point 8. The hinge assembly comprises a first leaf 18 and a second leaf 16, the first leaf 18 is platy, the second leaf 16 is L-shaped, mounting holes are formed in the vertical section and the horizontal section of the second leaf 16, and one end of the first leaf 18 is hinged with the end of the horizontal section of the second leaf 16 in a hinge shaft mode; the telescopic component is a third turnbuckle 15, the end part of a screw rod at one end of the third turnbuckle 15 is in a hook shape and is connected with the fastening point, and the end part of a screw rod at the other end of the third turnbuckle 15 is in an O shape and is connected with the first leaf 18.

When the strength test is carried out on the side wall of the carriage, the vertical section and the horizontal section of the second leaf 16 are respectively fixed on two surfaces of a rod of the vertical frame by screws, the hooked end of the third turnbuckle 15 is hooked on a fastening point, and the O-shaped end at the other end is connected with one end of the first leaf 18 by a bolt. The third turnbuckle 15 is adjusted until the vertical frame is adjusted to the appropriate distance from the side wall. After the air compressor is started, compressed air is filled into the air bag, the air bag begins to expand along with the increase of pressure, the pressure is transmitted to the vertical frame through the composite board, and the vertical frame is firmly fixed on a floor fastening point by the first leaf 18, the second leaf 16 and the third turnbuckle 15, so that the movement is limited, and the air bag can only expand towards the direction of the side wall.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a carriage strength test's fixing device which characterized in that: the first fixing device is used for testing the strength of the front wall or the rear wall of the carriage and comprises a transverse assembly and a longitudinal assembly, wherein the transverse assembly can block the vertical frame from moving horizontally, and the transverse assembly and the longitudinal assembly are detachably connected to form a square frame capable of adjusting the area; a first fastening component is detachably connected in front of the longitudinal component, a second fastening component is detachably connected at the bottom end of the longitudinal component, the first fastening component is connected with a fastening point towards one side of the front wall or the rear wall, the second fastening component is connected with a fastening point far away from one side of the front wall or the rear wall, and the connecting position of the first fastening component on the longitudinal component can be adjusted;

including the second fixing device who is used for the lateral wall intensity test in carriage, second fixing device includes hinge subassembly and the flexible subassembly that can adjust length, hinge subassembly one end can be dismantled with the one end of flexible subassembly and be connected, hinge subassembly other end bolted connection is to vertical frame on, the flexible subassembly other end colludes on tying the fixed point.

2. The fixing device for the carriage strength test according to claim 1, wherein: the transverse component comprises a cross rod and a transverse connecting piece, the longitudinal component comprises two supporting pieces, the cross rod is detachably connected to the two supporting pieces, and the transverse connecting piece is detachably connected to the bottom ends of the two supporting pieces.

3. The fixing device for the carriage strength test according to claim 2, wherein: the cross rod is provided with two through grooves for adjusting the connecting position of the supporting piece, the through grooves are mutually independent, the through grooves are respectively positioned at two ends of the cross rod, the cross rod is provided with a plurality of lightening holes, and the lightening holes are positioned between the two through grooves.

4. The fixing device for the carriage strength test according to claim 3, wherein: the transverse connecting piece is a first turnbuckle, and the end parts of screw rods at two ends of the first turnbuckle are U-shaped.

5. The fixing device for the carriage strength test according to claim 4, wherein: the supporting piece is provided with a plurality of connecting holes, and any connecting hole can connect the cross rod with the supporting piece through a bolt.

6. The fixing device for the carriage strength test according to claim 5, wherein: the first fastening component comprises a second turnbuckle, the end part of a screw rod at one end of the second turnbuckle is U-shaped, and the end part of a screw rod at the other end of the second turnbuckle is O-shaped.

7. The fixing device for the carriage strength test according to claim 6, wherein: the second fastening component comprises a stop block and an L-shaped fastening seat, a fastening hole and two bolt holes with central axes parallel to each other are formed in the vertical section of the fastening seat, the diameter of each bolt hole is smaller than that of the fastening hole, the bolt holes are located below the fastening holes and are symmetrically distributed, the fastening holes are used for being fastened with the supporting piece and connected with the first turnbuckle, the bolt holes are used for being connected with the supporting piece, a mounting seat capable of being inserted into a fastening point is fixedly arranged at the end part of the horizontal section of the fastening seat, a threaded hole is formed in the mounting seat, the mounting seat is a cylinder, a through hole is formed in the stop block, a spanning groove capable of spanning the mounting seat is formed in the stop block, and the spanning groove is located below the through hole and communicated with the through hole.

8. The fixing device for the carriage strength test according to claim 1, wherein: hinge subassembly includes first page or leaf and second page or leaf, first page or leaf becomes platelike, the second page or leaf becomes L shape, the mounting hole has all been seted up on the vertical section and the horizontal segment of second page or leaf, the one end of first page or leaf is followed along articulated with the horizontal segment end of second page or leaf.

9. The fixing device for the carriage strength test according to claim 8, wherein: the telescopic component is a third turnbuckle, the end part of a screw rod at one end of the third turnbuckle is in a hook shape and is connected with the fastening point, and the end part of a screw rod at the other end of the third turnbuckle is in an O shape and is connected with the first page.