A vehicle frame and its matching seat structure

Abstract

The utility model discloses a vehicle frame and the supporting seat structure of being matched with, vehicle frame includes vehicle frame body, and vehicle frame body adopts cuboid shape, and the wheel group is installed below vehicle frame body, and the top surface of vehicle frame body is provided with bolt hole group, and the supporting seat structure includes two supporting seat body, and two supporting seat body are installed and are fixed on vehicle frame body, and the top surface of supporting seat body is concave and forms the gap, and the gap is loaded into and has the replacement formula part, and the top surface of replacement formula part is concave and forms the arc -shaped recess, and the arc -shaped recess is used to hold the cylinder of rocket engine, and the vehicle frame of the utility model has linear movement function, and can satisfy the demand of thrust test, and two supporting seat body in the supporting seat structure of the utility model can be close to each other or be away from each other to satisfy the lifting of rocket engine of different length, and the supporting seat body is equipped with replacement formula part, and can select suitable replacement formula part according to the diameter of different rocket engine, and the utility model adapts the test lifting demand of rocket engine of different model.

Description

Technical Field

[0001] This utility model relates to the technical field of thrust testing equipment, and more specifically, to a vehicle frame and its supporting support structure. Background Technology

[0002] In rocket engine thrust testing, the rocket engine needs to be placed horizontally on a specially designed chassis. There are different models of rocket engines currently used for thrust testing, and the diameter and length of each model are different. This poses a compatibility challenge to the design of the chassis. When designing the chassis, companies need to consider meeting the testing requirements of multiple rocket engine models in order to effectively control testing costs. This case arises from this need. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a frame and its matching support structure. The frame of this utility model has a linear movement function and can meet the thrust testing requirements. This utility model is designed with a special support structure to support the rocket engine body. The two support bodies in the support structure can move closer or further apart to meet the support of rocket engines of different lengths. The support body is equipped with replaceable sub-supports, and the appropriate replaceable sub-supports can be selected according to the diameter of different rocket engines.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A vehicle frame includes a frame body, the frame body being in the shape of a cuboid, a wheel assembly mounted on the underside of the frame body, and a bolt hole assembly formed on the top surface of the frame body.

[0006] Furthermore, the number of wheel sets is set to two sets, each set of wheel sets includes two symmetrically and rotatably mounted wheels, and the two wheel sets are symmetrically mounted on the bottom surface of the frame body.

[0007] Furthermore, the number of bolt hole groups is two, and the two bolt hole groups are symmetrically opened on the top surface of the frame body. Each bolt hole group includes several bolt holes, which are evenly distributed along the length direction of the frame body.

[0008] Furthermore, the side of the vehicle frame body is connected and installed with limiting beams. The number of limiting beams is set to four, with two limiting beams forming a group, and the two groups of limiting beams are installed symmetrically.

[0009] Furthermore, the limiting beam is laterally connected to the side wall of the vehicle frame body in the length direction, and a reinforcing plate is installed at the outer end of the limiting beam. The reinforcing plate is welded to the top plane and the end wall of the limiting beam respectively.

[0010] Furthermore, the frame body has several through-holes in the manufacturing process, and tow hook lugs are welded and installed on both wide side walls of the frame body.

[0011] A support structure is applied to a vehicle frame, comprising two support bodies. The two support bodies are installed and fixed to the vehicle frame body by means of bottom bolt connection to bolt hole group. The top surface of the support body is recessed to form a notch, and a replaceable sub-support is inserted into the notch. The top surface of the replaceable sub-support is recessed to form an arc-shaped groove, which is used to support the cylinder of the rocket engine.

[0012] Furthermore, two first bolt plates are welded and installed at the bottom of the support body, and the two first bolt plates are respectively set to correspond to two bolt hole groups. Two second bolt plates are welded and installed at the top of the support body, and the two second bolt plates are symmetrically arranged on both sides of the replaceable sub-support. Two third bolt plates are welded and installed at the bottom of the replaceable sub-support, and the replaceable sub-support is fixedly connected to the support body by bolts passing through the third bolt plates.

[0013] Furthermore, a padding layer is laid on the arc-shaped groove of the replaceable tray. The padding layer is made of felt material and is bonded to the arc-shaped groove.

[0014] Furthermore, a positioning slot is provided at the bottom of the support body, and a positioning strip seat is laid and installed on the frame body. The positioning strip seat is made of strip square steel, and the cross-sectional dimensions of the positioning strip seat are adapted to the positioning slot.

[0015] The beneficial effects of this utility model are:

[0016] The chassis of this invention has a linear movement function (along the length of the chassis), which can meet the thrust testing requirements. This invention features a specially designed support structure to support the rocket engine body. The two support bodies in the support structure can move closer or further apart to meet the support requirements of rocket engines of different lengths. The support bodies are equipped with replaceable sub-supports, and the appropriate replaceable sub-supports can be selected according to the diameter of different rocket engines. This invention is adaptable to the testing and support requirements of different types of rocket engines. Attached Figure Description

[0017] Figure 1 This is a three-dimensional external schematic diagram of a frame and support structure in this embodiment;

[0018] Figure 2 This is a side view of the frame and support structure in this embodiment;

[0019] Figure 3 This is a front view schematic diagram of the mounting structure of the vehicle frame and the integrated bracket in this embodiment;

[0020] Figure 4 This is a front view of the mounting structure of the support body and the replacement sub-support in this embodiment;

[0021] Figure 5 This is a front view of a small-sized replacement bracket in this embodiment.

[0022] Reference numerals in the attached drawings: 1. Chassis body; 11. Limiting beam; 111. Reinforcing plate; 12. Process groove; 13. Hook lug; 14. Positioning strip seat; 2. Wheel set; 21. Wheel; 3. Bolt hole set; 4. Support body; 41. First bolt plate; 42. Arc groove; 43. Support pad layer; 44. Second bolt plate; 45. Positioning groove; 5. Replaceable support; 5. Third bolt plate; 51. Lateral limiting assembly; 52. Limiting bolt; 521. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-5 The diagram shows a vehicle frame and its supporting support structure used for rocket engine thrust testing. The vehicle frame includes a frame body 1, which supports a horizontally positioned rocket engine. Therefore, the frame body 1 has a flat rectangular shape. Two sets of wheels 2 are installed below the frame body 1. Each set of wheels 2 includes two symmetrically mounted and rotatably installed wheels 21. The two sets of wheels 2 are symmetrically installed along the length of the bottom surface of the frame body 1. The presence of the wheel sets 2 allows the entire vehicle frame to move. The test site is paved with tracks, and the vehicle frame is mounted on the tracks via the wheel sets 2. The vehicle frame can move along... The track moves along its length. The component on the frame that supports and holds the rocket engine is a support structure. This invention features two sets of bolt holes 3 on the top surface of the frame body 1, symmetrically positioned along the width of the top surface. These bolt hole sets 3 are used to install the support structure, which includes two support bodies 4. Each support body 4 spans and connects to the two sets of bolt holes 3. Each bolt hole set 3 includes several bolt holes evenly distributed along the length of the frame body 1. The spacing between the two support bodies 4 is adjustable to accommodate rocket engines of different lengths. Figure 3The diagram shows an integrated support structure. The characteristic of this support structure is that the top surface of the support body 4 is directly recessed to form an arc-shaped groove 42. This arc-shaped groove 42 matches the shape of the rocket engine cylinder, allowing for stable support of a horizontally positioned rocket engine. However, since the arc-shaped groove 42 of the support body 4 is of a fixed size, this integrated support structure can only support rocket engines of one diameter, resulting in significant limitations. To address this, this invention designs a replaceable support structure, such as… Figure 4 As shown, in this invention, the top surface of the support body 4 is recessed to form a notch, which can be fitted with a replaceable sub-support 5. The top surface of the replaceable sub-support 5 is recessed to form an arc-shaped groove 42. The replaceable sub-support 5 adopts a detachable installation design, and each replaceable sub-support 5 has an arc-shaped groove 42 with a different radius size, for example... Figure 5 The radius of the arc-shaped groove 42 is significantly smaller than Figure 4 With an arc-shaped groove radius of 42, the replacement support 5 can meet the support requirements of rocket engines of different diameters. The arc radius of the present invention is currently designed to be between 300-1200mm, which can basically cover the support requirements of conventional rocket engines.

[0025] The chassis of this invention requires limiting during thrust testing. The chassis is required to move only in a straight line along the thrust direction and not deviate in any other direction. To meet these requirements, such as... Figure 1 As shown, this utility model has four limiting beams 11 connected and installed on the side of the frame body 1. The limiting beams 11 are arranged in pairs, and the two pairs of limiting beams 11 are symmetrically installed. The limiting beams 11 are laterally connected to the side wall of the frame body 1 in the length direction. The limiting beams 11 are used in conjunction with the limiting device. The limiting device is not the focus of this utility model, so its specific structure will not be described. The limiting device restricts the lateral and upward movement of the frame by contact. Therefore, a reinforcing plate 111 is installed at the outer end of the limiting beam 11. The reinforcing plate 111 is welded to the top plane and the end wall of the limiting beam 11 respectively. The position of the reinforcing plate 111 is used to cooperate with the contact of the limiting device.

[0026] like Figure 1 As shown, the frame body 1 has several through-hole process slots 12, which are used to reduce the overall weight of the frame. Tow hook lugs 13 are welded and installed on the two wide side walls of the frame body 1. The frame is very heavy and needs to be pulled by ropes. The tow hook lugs 13 are used to connect the ropes.

[0027] like Figure 1 As shown, in this utility model's support structure, both support bodies 4 are installed and fixed to the frame body 1 by means of bottom bolt connection to bolt hole group 3, as... Figure 4As shown, two first bolt plates 41 are welded and installed at the bottom of the support body 4. The two first bolt plates 41 are respectively set to correspond to two bolt hole groups 3, allowing the support body 4 to be bolted across the two bolt hole groups 3. Two second bolt plates 44 are welded and installed at the top of the support body 4. The two second bolt plates 44 are symmetrically arranged on both sides of the replaceable sub-support 5. The second bolt plates 44 are used to install other radial positioning components. These other radial positioning components are used to withstand the radial vibration of the rocket engine cylinder during rocket engine thrust testing. These other radial positioning components are not the focus of this utility model. The structure is not described here. Two third bolt plates 51 are welded and installed at the bottom of the replaceable sub-support 5. The replaceable sub-support 5 is fixedly connected to the support body 4 by bolts through the third bolt plates 51. Lateral limiting components 52 are also symmetrically arranged on both sides of the replaceable sub-support 5. Each lateral limiting component 52 includes two limiting bolts 521. The limiting bolts 521 are threaded and can be turned. The limiting bolts 521 can laterally abut against the side wall of the replaceable sub-support 5, thus limiting the lateral position of the replaceable sub-support 5. The design of the limiting bolts 521 can counteract the lateral movement force of the replaceable sub-support 5.

[0028] To protect the rocket engine housing, such as Figure 4 As shown, a padding layer 43 is laid on the arc-shaped groove 42 of the replaceable tray 5. The padding layer 43 is made of felt material and is glued to the arc-shaped groove 42.

[0029] To facilitate the quick installation of bracket 4, such as Figure 4 As shown, this utility model has a positioning groove 45 at the bottom of the support body 4, such as Figure 1 As shown, a positioning strip seat 14 is installed on the frame body 1. The positioning strip seat 14 is made of strip square steel. The cross-sectional dimensions of the positioning strip seat 14 are adapted to the positioning slot 45. When the bracket body 4 is installed, the positioning slot 45 is inserted into the positioning strip seat 14. This allows the installation orientation of the bracket body 4 to be quickly determined. The bracket body 4 can be quickly installed simply by moving its position in the length direction of the frame. This design makes the installation of the bracket body 4 more convenient.

[0030] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A vehicle frame, characterized in that, Includes a frame body (1), which is rectangular in shape, and a wheel assembly (2) is installed below the frame body (1). A bolt hole assembly (3) is provided on the top surface of the frame body (1).

2. The vehicle frame according to claim 1, characterized in that, The number of wheel sets (2) is set to two sets. Each set of wheel sets (2) includes two symmetrically mounted and rotatably mounted wheels (21). The two wheel sets (2) are symmetrically mounted on the bottom surface of the frame body (1).

3. The frame according to claim 1, characterized in that, The number of bolt hole groups (3) is two. The two bolt hole groups (3) are symmetrically opened on the top surface of the frame body (1). Each bolt hole group (3) includes several bolt holes, which are evenly distributed along the length of the frame body (1).

4. The vehicle frame according to claim 1, characterized in that, The side of the frame body (1) is connected to and installed with limiting beams (11). The number of limiting beams (11) is set to four. The limiting beams (11) are arranged in groups of two, and the two groups of limiting beams (11) are installed symmetrically.

5. A frame according to claim 4, characterized in that, The limiting beam (11) is laterally connected to the side wall of the frame body (1) along the length direction. A reinforcing plate (111) is installed on the outer end of the limiting beam (11). The reinforcing plate (111) is welded to the top plane and the end wall of the limiting beam (11).

6. A vehicle frame according to claim 1, characterized in that, The frame body (1) has several through-hole process slots (12), and tow hook lugs (13) are welded and installed on both sides of the frame body (1).

7. A support structure, applied to a vehicle frame as described in any one of claims 1-6, characterized in that, It includes two support bodies (4), which are installed and fixed on the frame body (1) by means of bottom bolt connection bolt hole group (3). The top surface of the support body (4) is recessed to form a notch, and a replacement sub-support (5) is inserted into the notch. The top surface of the replacement sub-support (5) is recessed to form an arc-shaped groove (42), which is used to support the cylinder of the rocket engine.

8. The support structure according to claim 7, characterized in that, The bottom of the support body (4) is welded with two first bolt plates (41), which are respectively set with two bolt hole groups (3). The top of the support body (4) is welded with two second bolt plates (44), which are symmetrically arranged on both sides of the replaceable sub-support (5). The bottom of the replaceable sub-support (5) is welded with two third bolt plates (51), which are fixedly connected to the support body (4) by bolts through the third bolt plates (51).

9. The support structure according to claim 7, characterized in that, The replaceable tray (5) has a padding layer (43) laid on the arc-shaped groove (42), the padding layer (43) is made of felt material, and the padding layer (43) is bonded to the arc-shaped groove (42).

10. A support structure according to claim 7, characterized in that, The bottom of the support body (4) is provided with a positioning slot (45), and a positioning strip seat (14) is laid and installed on the frame body (1). The positioning strip seat (14) is made of strip square steel, and the cross-sectional dimensions of the positioning strip seat (14) are adapted to the positioning slot (45).

Images